注意：必需先定义，再使用。

#include 
    
     #include 
     
      using namespace std;#define DIGIT   4       //ËÄλ¸ô¿ª,¼´Íò½øÖÆ#define DEPTH   10000   //Íò½øÖÆ#define MAX     1000typedef int bignum_t[MAX+1];/************************************************************************//* ¶ÁÈ¡²Ù×÷Êý£¬¶Ô²Ù×÷Êý½øÐд¦Àí´æ´¢ÔÚÊý×éÀï                             *//************************************************************************/int read(bignum_t a,istream&is=cin){    char buf[MAX*DIGIT+1],ch ;    int i,j ;    memset((void*)a,0,sizeof(bignum_t));    if(!(is>>buf))return 0 ;    for(a[0]=strlen(buf),i=a[0]/2-1;i>=0;i--)    ch=buf[i],buf[i]=buf[a[0]-1-i],buf[a[0]-1-i]=ch ;    for(a[0]=(a[0]+DIGIT-1)/DIGIT,j=strlen(buf);j
      
       1;a[0]--);    return 1 ;}void write(const bignum_t a,ostream&os=cout){    int i,j ;    for(os<
       
        =DEPTH;c[c[0]+1]=c[c[0]]/DEPTH,c[c[0]]%=DEPTH,c[0]++);    return comp(a,c);}int comp(const bignum_t a,const int c,const int d,const bignum_t b){    int i,t=0,O=-DEPTH*2 ;    if(b[0]-a[0]
        
         d;i--)    {        t=t*DEPTH+a[i-d]*c-b[i];        if(t>0)return 1 ;        if(t
         
          0)return 1 ; if(t
          
           0 ;}/************************************************************************//* ´óÊýÓë´óÊýÏà¼Ó *//************************************************************************/void add(bignum_t a,const bignum_t b){ int i ; for(i=1;i<=b[0];i++) if((a[i]+=b[i])>=DEPTH) a[i]-=DEPTH,a[i+1]++; if(b[0]>=a[0]) a[0]=b[0]; else for(;a[i]>=DEPTH&&i
           
            0);}/************************************************************************//* ´óÊýÓëСÊýÏà¼Ó *//************************************************************************/void add(bignum_t a,const int b){ int i=1 ; for(a[1]+=b;a[i]>=DEPTH&&i
            
             =DEPTH;a[a[0]+1]=a[a[0]]/DEPTH,a[a[0]]%=DEPTH,a[0]++);}/************************************************************************//* ´óÊýÏà¼õ(±»¼õÊý>=¼õÊý) *//************************************************************************/void sub(bignum_t a,const bignum_t b){ int i ; for(i=1;i<=b[0];i++) if((a[i]-=b[i])<0) a[i+1]--,a[i]+=DEPTH ; for(;a[i]<0;a[i]+=DEPTH,i++,a[i]--); for(;!a[a[0]]&&a[0]>1;a[0]--);}/************************************************************************//* ´óÊý¼õȥСÊý(±»¼õÊý>=¼õÊý) *//************************************************************************/void sub(bignum_t a,const int b){ int i=1 ; for(a[1]-=b;a[i]<0;a[i+1]+=(a[i]-DEPTH+1)/DEPTH,a[i]-=(a[i]-DEPTH+1)/DEPTH*DEPTH,i++); for(;!a[a[0]]&&a[0]>1;a[0]--);}void sub(bignum_t a,const bignum_t b,const int c,const int d){ int i,O=b[0]+d ; for(i=1+d;i<=O;i++) if((a[i]-=b[i-d]*c)<0) a[i+1]+=(a[i]-DEPTH+1)/DEPTH,a[i]-=(a[i]-DEPTH+1)/DEPTH*DEPTH ; for(;a[i]<0;a[i+1]+=(a[i]-DEPTH+1)/DEPTH,a[i]-=(a[i]-DEPTH+1)/DEPTH*DEPTH,i++); for(;!a[a[0]]&&a[0]>1;a[0]--);}/************************************************************************//* ´óÊýÏà³Ë£¬¶ÁÈë±»³ËÊýa£¬³ËÊýb£¬½á¹û±£´æÔÚc[] *//************************************************************************/void mul(bignum_t c,const bignum_t a,const bignum_t b){ int i,j ; memset((void*)c,0,sizeof(bignum_t)); for(c[0]=a[0]+b[0]-1,i=1;i<=a[0];i++) for(j=1;j<=b[0];j++) if((c[i+j-1]+=a[i]*b[j])>=DEPTH) c[i+j]+=c[i+j-1]/DEPTH,c[i+j-1]%=DEPTH ; for(c[0]+=(c[c[0]+1]>0);!c[c[0]]&&c[0]>1;c[0]--);}/************************************************************************//* ´óÊý³ËÒÔСÊý£¬¶ÁÈë±»³ËÊýa£¬³ËÊýb£¬½á¹û±£´æÔÚ±»³ËÊý *//************************************************************************/void mul(bignum_t a,const int b){ int i ; for(a[1]*=b,i=2;i<=a[0];i++) { a[i]*=b ; if(a[i-1]>=DEPTH) a[i]+=a[i-1]/DEPTH,a[i-1]%=DEPTH ; } for(;a[a[0]]>=DEPTH;a[a[0]+1]=a[a[0]]/DEPTH,a[a[0]]%=DEPTH,a[0]++); for(;!a[a[0]]&&a[0]>1;a[0]--);}void mul(bignum_t b,const bignum_t a,const int c,const int d){ int i ; memset((void*)b,0,sizeof(bignum_t)); for(b[0]=a[0]+d,i=d+1;i<=b[0];i++) if((b[i]+=a[i-d]*c)>=DEPTH) b[i+1]+=b[i]/DEPTH,b[i]%=DEPTH ; for(;b[b[0]+1];b[0]++,b[b[0]+1]=b[b[0]]/DEPTH,b[b[0]]%=DEPTH); for(;!b[b[0]]&&b[0]>1;b[0]--);}/**************************************************************************//* ´óÊýÏà³ý,¶ÁÈë±»³ýÊýa£¬³ýÊýb£¬½á¹û±£´æÔÚc[]Êý×é *//* ÐèÒªcomp()º¯Êý *//**************************************************************************/void div(bignum_t c,bignum_t a,const bignum_t b){ int h,l,m,i ; memset((void*)c,0,sizeof(bignum_t)); c[0]=(b[0]
             
              >1;h>l;m=(h+l+1)>>1) if(comp(b,m,i-1,a))h=m-1 ; else l=m ; for(;!c[c[0]]&&c[0]>1;c[0]--); c[0]=c[0]>1?c[0]:1 ;}void div(bignum_t a,const int b,int&c){ int i ; for(c=0,i=a[0];i;c=c*DEPTH+a[i],a[i]=c/b,c%=b,i--); for(;!a[a[0]]&&a[0]>1;a[0]--);}/************************************************************************//* ´óÊýƽ·½¸ù£¬¶ÁÈë´óÊýa£¬½á¹û±£´æÔÚb[]Êý×éÀï *//* ÐèÒªcomp()º¯Êý *//************************************************************************/void sqrt(bignum_t b,bignum_t a){ int h,l,m,i ; memset((void*)b,0,sizeof(bignum_t)); for(i=b[0]=(a[0]+1)>>1;i;sub(a,b,m,i-1),b[i]+=m,i--) for(h=DEPTH-1,l=0,b[i]=m=(h+l+1)>>1;h>l;b[i]=m=(h+l+1)>>1) if(comp(b,m,i-1,a))h=m-1 ; else l=m ; for(;!b[b[0]]&&b[0]>1;b[0]--); for(i=1;i<=b[0];b[i++]>>=1);}/************************************************************************//* ·µ»Ø´óÊýµÄ³¤¶È *//************************************************************************/int length(const bignum_t a){ int t,ret ; for(ret=(a[0]-1)*DIGIT,t=a[a[0]];t;t/=10,ret++); return ret>0?ret:1 ;}/************************************************************************//* ·µ»ØÖ¸¶¨Î»ÖõÄÊý×Ö£¬´ÓµÍλ¿ªÊ¼Êýµ½µÚb룬·µ»ØbλÉϵÄÊý *//************************************************************************/int digit(const bignum_t a,const int b){ int i,ret ; for(ret=a[(b-1)/DIGIT+1],i=(b-1)%DIGIT;i;ret/=10,i--); return ret%10 ;}/************************************************************************//* ·µ»Ø´óÊýĩβ0µÄ¸öÊý *//************************************************************************/int zeronum(const bignum_t a){ int ret,t ; for(ret=0;!a[ret+1];ret++); for(t=a[ret+1],ret*=DIGIT;!(t%10);t/=10,ret++); return ret ;}void comp(int*a,const int l,const int h,const int d){ int i,j,t ; for(i=l;i<=h;i++) for(t=i,j=2;t>1;j++) while(!(t%j)) a[j]+=d,t/=j ;}void convert(int*a,const int h,bignum_t b){ int i,j,t=1 ; memset(b,0,sizeof(bignum_t)); for(b[0]=b[1]=1,i=2;i<=h;i++) if(a[i]) for(j=a[i];j;t*=i,j--) if(t*i>DEPTH) mul(b,t),t=1 ; mul(b,t);}/************************************************************************//* ×éºÏÊý *//************************************************************************/void combination(bignum_t a,int m,int n){ int*t=new int[m+1]; memset((void*)t,0,sizeof(int)*(m+1)); comp(t,n+1,m,1); comp(t,2,m-n,-1); convert(t,m,a); delete[]t ;}/************************************************************************//* ÅÅÁÐÊý *//************************************************************************/void permutation(bignum_t a,int m,int n){ int i,t=1 ; memset(a,0,sizeof(bignum_t)); a[0]=a[1]=1 ; for(i=m-n+1;i<=m;t*=i++) if(t*i>DEPTH) mul(a,t),t=1 ; mul(a,t);}#define SGN(x) ((x)>0?1:((x)<0?-1:0))#define ABS(x) ((x)>0?(x):-(x))int read(bignum_t a,int&sgn,istream&is=cin){ char str[MAX*DIGIT+2],ch,*buf ; int i,j ; memset((void*)a,0,sizeof(bignum_t)); if(!(is>>str))return 0 ; buf=str,sgn=1 ; if(*buf=='-')sgn=-1,buf++; for(a[0]=strlen(buf),i=a[0]/2-1;i>=0;i--) ch=buf[i],buf[i]=buf[a[0]-1-i],buf[a[0]-1-i]=ch ; for(a[0]=(a[0]+DIGIT-1)/DIGIT,j=strlen(buf);j
              
               1;a[0]--); if(a[0]==1&&!a[1])sgn=0 ; return 1 ;}struct bignum{ bignum_t num ; int sgn ; public : inline bignum() { memset(num,0,sizeof(bignum_t)); num[0]=1 ; sgn=0 ; } inline int operator!() { return num[0]==1&&!num[1]; } inline bignum&operator=(const bignum&a) { memcpy(num,a.num,sizeof(bignum_t)); sgn=a.sgn ; return*this ; } inline bignum&operator=(const int a) { memset(num,0,sizeof(bignum_t)); num[0]=1 ; sgn=SGN (a); add(num,sgn*a); return*this ; } ; inline bignum&operator+=(const bignum&a) { if(sgn==a.sgn)add(num,a.num); else if (sgn&&a.sgn) { int ret=comp(num,a.num); if(ret>0)sub(num,a.num); else if(ret<0) { bignum_t t ; memcpy(t,num,sizeof(bignum_t)); memcpy(num,a.num,sizeof(bignum_t)); sub (num,t); sgn=a.sgn ; } else memset(num,0,sizeof(bignum_t)),num[0]=1,sgn=0 ; } else if(!sgn) memcpy(num,a.num,sizeof(bignum_t)),sgn=a.sgn ; return*this ; } inline bignum&operator+=(const int a) { if(sgn*a>0)add(num,ABS(a)); else if(sgn&&a) { int ret=comp(num,ABS(a)); if(ret>0)sub(num,ABS(a)); else if(ret<0) { bignum_t t ; memcpy(t,num,sizeof(bignum_t)); memset(num,0,sizeof(bignum_t)); num[0]=1 ; add(num,ABS (a)); sgn=-sgn ; sub(num,t); } else memset(num,0,sizeof(bignum_t)),num[0]=1,sgn=0 ; } else if (!sgn)sgn=SGN(a),add(num,ABS(a)); return*this ; } inline bignum operator+(const bignum&a) { bignum ret ; memcpy(ret.num,num,sizeof (bignum_t)); ret.sgn=sgn ; ret+=a ; return ret ; } inline bignum operator+(const int a) { bignum ret ; memcpy(ret.num,num,sizeof (bignum_t)); ret.sgn=sgn ; ret+=a ; return ret ; } inline bignum&operator-=(const bignum&a) { if(sgn*a.sgn<0)add(num,a.num); else if (sgn&&a.sgn) { int ret=comp(num,a.num); if(ret>0)sub(num,a.num); else if(ret<0) { bignum_t t ; memcpy(t,num,sizeof(bignum_t)); memcpy(num,a.num,sizeof(bignum_t)); sub(num,t); sgn=-sgn ; } else memset(num,0,sizeof(bignum_t)),num[0]=1,sgn=0 ; } else if(!sgn)add (num,a.num),sgn=-a.sgn ; return*this ; } inline bignum&operator-=(const int a) { if(sgn*a<0)add(num,ABS(a)); else if(sgn&&a) { int ret=comp(num,ABS(a)); if(ret>0)sub(num,ABS(a)); else if(ret<0) { bignum_t t ; memcpy(t,num,sizeof(bignum_t)); memset(num,0,sizeof(bignum_t)); num[0]=1 ; add(num,ABS(a)); sub(num,t); sgn=-sgn ; } else memset(num,0,sizeof(bignum_t)),num[0]=1,sgn=0 ; } else if (!sgn)sgn=-SGN(a),add(num,ABS(a)); return*this ; } inline bignum operator-(const bignum&a) { bignum ret ; memcpy(ret.num,num,sizeof(bignum_t)); ret.sgn=sgn ; ret-=a ; return ret ; } inline bignum operator-(const int a) { bignum ret ; memcpy(ret.num,num,sizeof(bignum_t)); ret.sgn=sgn ; ret-=a ; return ret ; } inline bignum&operator*=(const bignum&a) { bignum_t t ; mul(t,num,a.num); memcpy(num,t,sizeof(bignum_t)); sgn*=a.sgn ; return*this ; } inline bignum&operator*=(const int a) { mul(num,ABS(a)); sgn*=SGN(a); return*this ; } inline bignum operator*(const bignum&a) { bignum ret ; mul(ret.num,num,a.num); ret.sgn=sgn*a.sgn ; return ret ; } inline bignum operator*(const int a) { bignum ret ; memcpy(ret.num,num,sizeof (bignum_t)); mul(ret.num,ABS(a)); ret.sgn=sgn*SGN(a); return ret ; } inline bignum&operator/=(const bignum&a) { bignum_t t ; div(t,num,a.num); memcpy (num,t,sizeof(bignum_t)); sgn=(num[0]==1&&!num[1])?0:sgn*a.sgn ; return*this ; } inline bignum&operator/=(const int a) { int t ; div(num,ABS(a),t); sgn=(num[0]==1&&!num [1])?0:sgn*SGN(a); return*this ; } inline bignum operator/(const bignum&a) { bignum ret ; bignum_t t ; memcpy(t,num,sizeof(bignum_t)); div(ret.num,t,a.num); ret.sgn=(ret.num[0]==1&&!ret.num[1])?0:sgn*a.sgn ; return ret ; } inline bignum operator/(const int a) { bignum ret ; int t ; memcpy(ret.num,num,sizeof(bignum_t)); div(ret.num,ABS(a),t); ret.sgn=(ret.num[0]==1&&!ret.num[1])?0:sgn*SGN(a); return ret ; } inline bignum&operator%=(const bignum&a) { bignum_t t ; div(t,num,a.num); if(num[0]==1&&!num[1])sgn=0 ; return*this ; } inline int operator%=(const int a) { int t ; div(num,ABS(a),t); memset(num,0,sizeof (bignum_t)); num[0]=1 ; add(num,t); return t ; } inline bignum operator%(const bignum&a) { bignum ret ; bignum_t t ; memcpy(ret.num,num,sizeof(bignum_t)); div(t,ret.num,a.num); ret.sgn=(ret.num[0]==1&&!ret.num [1])?0:sgn ; return ret ; } inline int operator%(const int a) { bignum ret ; int t ; memcpy(ret.num,num,sizeof(bignum_t)); div(ret.num,ABS(a),t); memset(ret.num,0,sizeof(bignum_t)); ret.num[0]=1 ; add(ret.num,t); return t ; } inline bignum&operator++() { *this+=1 ; return*this ; } inline bignum&operator--() { *this-=1 ; return*this ; } ; inline int operator>(const bignum&a) { return sgn>0?(a.sgn>0?comp(num,a.num)>0:1):(sgn<0?(a.sgn<0?comp(num,a.num)<0:0):a.sgn<0); } inline int operator>(const int a) { return sgn>0?(a>0?comp(num,a)>0:1):(sgn<0?(a<0?comp(num,-a)<0:0):a<0); } inline int operator>=(const bignum&a) { return sgn>0?(a.sgn>0?comp(num,a.num)>=0:1):(sgn<0?(a.sgn<0?comp(num,a.num)<=0:0):a.sgn<=0); } inline int operator>=(const int a) { return sgn>0?(a>0?comp(num,a)>=0:1):(sgn<0?(a<0?comp(num,-a)<=0:0):a<=0); } inline int operator<(const bignum&a) { return sgn<0?(a.sgn<0?comp(num,a.num)>0:1):(sgn>0?(a.sgn>0?comp(num,a.num)<0:0):a.sgn>0); } inline int operator<(const int a) { return sgn<0?(a<0?comp(num,-a)>0:1):(sgn>0?(a>0?comp(num,a)<0:0):a>0); } inline int operator<=(const bignum&a) { return sgn<0?(a.sgn<0?comp(num,a.num)>=0:1):(sgn>0?(a.sgn>0?comp(num,a.num)<=0:0):a.sgn>=0); } inline int operator<=(const int a) { return sgn<0?(a<0?comp(num,-a)>=0:1): (sgn>0?(a>0?comp(num,a)<=0:0):a>=0); } inline int operator==(const bignum&a) { return(sgn==a.sgn)?!comp(num,a.num):0 ; } inline int operator==(const int a) { return(sgn*a>=0)?!comp(num,ABS(a)):0 ; } inline int operator!=(const bignum&a) { return(sgn==a.sgn)?comp(num,a.num):1 ; } inline int operator!=(const int a) { return(sgn*a>=0)?comp(num,ABS(a)):1 ; } inline int operator[](const int a) { return digit(num,a); } friend inline istream&operator>>(istream&is,bignum&a) { read(a.num,a.sgn,is); return is ; } friend inline ostream&operator<<(ostream&os,const bignum&a) { if(a.sgn<0) os<<'-' ; write(a.num,os); return os ; } friend inline bignum sqrt(const bignum&a) { bignum ret ; bignum_t t ; memcpy(t,a.num,sizeof(bignum_t)); sqrt(ret.num,t); ret.sgn=ret.num[0]!=1||ret.num[1]; return ret ; } friend inline bignum sqrt(const bignum&a,bignum&b) { bignum ret ; memcpy(b.num,a.num,sizeof(bignum_t)); sqrt(ret.num,b.num); ret.sgn=ret.num[0]!=1||ret.num[1]; b.sgn=b.num[0]!=1||ret.num[1]; return ret ; } inline int length() { return :: length(num); } inline int zeronum() { return :: zeronum(num); } inline bignum C(const int m,const int n) { combination(num,m,n); sgn=1 ; return*this ; } inline bignum P(const int m,const int n) { permutation(num,m,n); sgn=1 ; return*this ; }};bignum sum[36];int main(){ for(int i=0;i<31;i++) { bignum n; n=(long long)1<
               
                >n) { bignum ans; ans=0; for(int i=0;i<31;i++) { long long x; x=(long long)1<
                
                 =x) { ans=ans+sum[i]; n-=x; if(n==0)break; } else { bignum x1; x1=(n+2); //先定义，再使用 bignum x3; x3=n; bignum x2; x2=(n+1); ans=ans+x1*x2*x3*x3/6; break; } } cout<
                 
                  <