Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
135686 陈梓钒 只出现一次的字符 C++ Compile Error 0 MS 0 KB 372 2025-11-08 11:26:09

Tests(0/0):

Code:

#include<bits/stdc++.h> using namespace std; int sum[126]; int main(){ string s; cin>>s; for(int i=0;i<s.length();i++){ sum[s[i]]++; } int s_min_i=2e9 for(int i=97;i<=122;i++){ if(sum[i]==1){ if(s_min_i>s.find(char(i))) s_min_i=s.find(char(i)); } } if(s_min_i==2e9){ cout<<"no"; }else{ cout<<s[s_min_i]; } return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:7:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i