2 solutions

  • 1
    @ 2024-10-24 9:28:57
    #include<bits/stdc++.h>
    
    #pragma GCC optimize(3)
    
    using namespace std;
    
    int main(){
        string s;
        cin>>s;
        int ans=0;
        for(int i=0;i<s.size();++i){
            if(s[i]==49){
                ans++;
            }/*if(s[i]=='1'){
                ans++;
            }*/
        }
        printf("%d",ans);
        return 0;
    }
    
    • 0
      @ 2025-1-5 13:17:29

      如果字符串的某个字符等于 11 ,那么 cnt=cnt+1cnt=cnt+1

      • 1

      Information

      ID
      290
      Time
      1000ms
      Memory
      256MiB
      Difficulty
      2
      Tags
      # Submissions
      230
      Accepted
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