Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
123064 吴诗涵 只出现一次的字符 C++ Compile Error 0 MS 0 KB 524 2025-06-22 18:37:01

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ string s; int letters[26]={0},len,sum=0;i; getline(cin,s); len=s.length(); for(i=0;i<len;i++){ letters[s[i]-'a']++; } for(i=0;i<len;i++){ if(letters[s[i]-'a']==1){ cout<<s[i]<<endl; return 0; } } cout<<"no"<<endl; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:9:31: error: 'i' was not declared in this scope
 int letters[26]={0},len,sum=0;i;
                               ^
Main.cc:9:25: warning: unused variable 'sum' [-Wunused-variable]
 int letters[26]={0},len,sum=0;i;
                         ^