2110215942l @ 2022-09-11 11:39:28
#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
char a[60000],b[60000],c[60000];
cin>>a>>b;
int s1=strlen(a),s2=strlen(b);
int x[50000],y[50000];
for(int i=1;i<=s1;++i){
x[i]=a[s1-i]-'0';
}
for(int j=1;j<=s2;++j){
y[j]=b[s2-j]-'0';
}
int sum=s1+s2;
for(int i=1;i<=s1;++i){
for(int j=1;j<=s2;++j){
c[i+j-1]+=x[i]*y[j];
}
}
for(int i=1;i<=sum-1;++i){
if(c[i]>9){
c[i+1]+=c[i]/10;
c[i]=c[i]%10;
}
}
while(c[sum]==0&&sum>1) sum--;
for(int i=sum;i>=1;--i){
printf("%d",c[i]);
}
return 0;
}
by ALexanse @ 2022-09-15 21:26:22
@2110215942l 哥们,你把你的C数组改成int型就结了
by 2110215942l @ 2022-09-17 09:33:20
@ALexanse 哦哦,好像是,谢谢你!