10pts求调

P1303 A*B Problem

yzbzz147268 @ 2024-12-18 13:43:38


#include<bits/stdc++.h>
using namespace std;
int a[50050],b[50050],c[50050];
char a1[50000],b1[50000];
int main(){
    cin>>a1>>b1;
    int la=strlen(a1),lb=strlen(b1);
    for(int i=1;i<=la;i++)
        a[i]=a1[la-i]-'0';
    for(int i=1;i<=lb;i++)
        b[i]=b1[lb-i]-'0';
    for(int i=1;i<=lb;i++)
        for(int j=1;j<=la;j++)
            c[i+j-1]+=a[j]*b[i];
    for(int i=1;i<la+lb;i++){
        if(c[i]>9){
            c[i+1]+=c[i]/10;
            c[i]%10;
        }
    }
    int lc=la+lb;
    while(c[lc]==0&&lc>1)
        lc--;
    for(int i=lc;i>=1;i--)
        cout<<c[i];
    return 0;
}```

by Terrible @ 2024-12-18 14:30:22

@yzbzz147268

c[i]%=10;


by yzbzz147268 @ 2024-12-19 13:35:33

@Terrible 谢谢大佬,关注了


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