c++40分求救

qwertyuiop111_ @ 2024-07-18 09:15:41

#include<iostream>
using namespace std;
int main()
{
    int a;
    cin>>a;
    string b;
    cin>>b;
    for(int i=0;i<b.size();i++)
    {
        if (b[i]=='z') b[i]=b[i]-27+a;
        else b[i]+=a;
    }
    cout<<b;
    return 0;
}

by Kavin_0409 @ 2024-07-18 09:23:26

a~z->a是一个循环，用mod

#include<iostream>
using namespace std;
int main()
{
    int n;
    cin>>n;
    string b;
    cin>>b;
    for(int i=0;i<b.size();i++)
    {
        b[i]=(b[i]-'a'+26+n)%26+'a';
    }
    cout<<b;
    return 0;
}

by qwertyuiop111_ @ 2024-07-18 09:34:07

@Kavin_0409 已过，完结