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太郁闷了,不停的wa,我找了一个ac的程序对了一下数据,都没有问题,为什么过不了?#include<iostream>
#include<iomanip>
#include<cstdio>
using namespace std;
#define SIZE 1000
//s[0]储存位数,其他的从s[SIZE]开始向前存储
void mutiply(__int64* s1,__int64*s2,__int64*res){
int i,j;
for(i=SIZE;i>SIZE-s1[0];i--){
for(j=SIZE;j>SIZE-s2[0];j--){
res[i+j-SIZE]+=s1[i]*s2[j];
res[i+j-SIZE-1]+=res[i+j-SIZE]/100000000;
res[i+j-SIZE]%=100000000;
}
}
int len=s1[0]+s2[0];
for(i=SIZE+1-len;i<SIZE;i++){
if(res[i]!=0)break;
}
res[0]=SIZE+1-i;
/* res[0]=len;
if(res[1001-s1[0]-s2[0]]==0)res[0]--; */
}
void plus_(__int64*s){
int i;
s[SIZE]++;
for(i=SIZE;i>SIZE-s[0];i--){
if(s[i]>=100000000){
s[i]%=100000000;
s[i-1]++;
}
else break;
}
if(s[SIZE-s[0]]!=0)s[0]++;
}
void des(__int64*s){
int i;
s[SIZE]--;
for(i=SIZE;i>SIZE-s[0];i++){
if(s[i]<0){
s[i]+=100000000;
s[i-1]--;
}
else break;
}
if(s[SIZE-s[0]+1]==0)s[0]--;
}
int main(){
int N;
cin>>N;
cout<<2<<endl;
N--;
int i;
__int64 s[SIZE+1]={0};
s[0]=1;
s[SIZE]=2;
while(N--){
__int64 res[SIZE+1]={0};
__int64 s1[SIZE+1];
for(i=0;i<SIZE+1;i++){
s1[i]=s[i];
}
des(s1);
mutiply(s1,s,res);
plus_(res);
for(i=0;i<SIZE+1;i++){
s[i]=res[i];
}
for(i=SIZE+1-s[0];i<=SIZE;i++){
if(s[i]<10000000&&i!=SIZE+1-s[0]){
/* cout<<setw(8)<<setfill('0')<<s[i]; */
printf("%.8I64d",s[i]);
}
else printf("%I64d",s[i]);
}
printf("\n");
}
system("pause");
return 0;
}
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