90求调

Lzj0314 @ 2024-12-07 13:24:51

#include<bits/stdc++.h>
using namespace std;
int main(){
    char f[1200],a,ans;
    int cnt[27],n,sum,c[27];
    memset(cnt,0,sizeof(cnt));
    memset(c,0,sizeof(cnt));
    cin>>f;
    n=strlen(f);
    for(int i=0;i<n;i++){
        a=f[i];
        a=a-'a'+1;
        cnt[a]++;
        if(cnt[a]==1){sum++;c[sum]=a;}
    }
    for(int i=1;i<=26;i++){
        if(cnt[c[i]]==1){
            ans=c[i]+'a'-1;
            cout<<ans;
            return 0;
        }
    }
    cout<<"no";
    return 0;
}

by _th_tw_on_ @ 2024-12-07 13:32:32

@Lzj0314

#include<bits/stdc++.h>
using namespace std;
int main(){
    char f[1200],a,ans;
    int cnt[27],n,sum,c[27];
    memset(c,0,sizeof(c));
    memset(cnt,0,sizeof(cnt));
    cin>>f;
    n=strlen(f);
    for(int i=0;i<n;i++){
        a=f[i];
        a=a-'a'+1;
        cnt[a]++;
    }
    for(int i=0;i<n;i++){
        if(cnt[f[i]-'a'+1]==1){
            cout<<f[i];
            return 0;
        }
    }
    cout<<"no";
    return 0;
}

by Lzj0314 @ 2024-12-07 13:37:00

悟了，谢谢