dalao们看一下代码错哪了？

// luogu-judger-enable-o2
#include<bits/stdc++.h>
using namespace std;
int main()
{
    int i,j,n,m,ans=0;
    cin>>n>>m;
    for(i=1;i<=n;i++)
        ans++;
    for(j=1;j<=m;j++)
        ans++;
    cout<<ans;
    return 0;
}