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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define int long long
  4. void sol(){
  5.     string s;
  6.     cin >> s;
  7.     int c = 0, ans  = 0;
  8.     for(char ch:s){
  9.         if(ch == '1') c++;
  10.         else ans += c;
  11.     }
  12.     cout << ans << "\n";
  13. }
  14. signed main(){
  15.     ios_base::sync_with_stdio(false);
  16.     cin.tie(NULL);
  17.     cout.tie(NULL);
  18.     int t = 1;
  19.     cin >> t;
  20.     while(t--){
  21.         sol();
  22.     }
  23.     return 0;
  24. }
Success #stdin #stdout 0.01s 5236KB
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https://ideone.com/5SM0xt
language:
C++ (gcc 8.3)
created:
7 hours ago
visibility:
secret

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