ngs123 @ 2024-05-30 12:44:59
#include<bits/stdc++.h>
#define maxn 2000
using namespace std;
int a[maxn],b[maxn],c[maxn];
int main(){
string A,B;
cin>>A>>B;
int len=max(A.length(),B.length());
for(int i=A.length()-1,j=1;i>=0;i--,j++) a[j]=A[i]-'0';
for(int i=B.length()-1,j=1;i>=0;i--,j++) b[j]=B[i]-'0';
for(int i=1;i<=len;i++){
c[i]+=a[i]*b[i];
c[i+1]=c[i]/10;
c[i]%=10;
}
if(c[len+1]!=0) len++;
for(int i=len;i>=1;i--) cout<<c[i];
return 0;
}
by 200921lyt @ 2024-07-19 11:11:16
偶遇
by ngs123 @ 2024-11-17 10:23:52
@200921lyt 666 666 6
6 6 6 6 6 6 6 6 6