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  1. // iostream is too mainstream
  2. #include <cstdio>
  3. // bitch please
  4. #include <iostream>
  5. #include <vector>
  6. #include <set>
  7. #include <map>
  8. #include <string>
  9. #include <queue>
  10. #include <stack>
  11. #include <algorithm>
  12. #include <iomanip>
  13. #define dibs reserve
  14. #define OVER9000 1234567890
  15. #define patkan 9
  16. #define tisic 47
  17. #define soclose 10e-7
  18. #define ALL_THE(CAKE,LIE) for(auto LIE =CAKE.begin(); LIE != CAKE.end(); LIE++)
  19. #define chocolate win
  20. #define ff first
  21. #define ss second
  22. #define abs(x) ((x < 0)?-(x):(x))
  23. // mylittlepony
  24. using namespace std;
  25.  
  26. int main() {
  27.     cin.sync_with_stdio(0);
  28.     int N;
  29.     long long a,s =0,S,ans =0;
  30.     cin >> N >> S;
  31.     map<long long,int> M;
  32.     M[s] =1;
  33.     for(int i =0; i < N; i++) {
  34.     	cin >> a;
  35.     	s +=a;
  36.     	if(M.find(s-S) != M.end()) ans +=M[s-S];
  37.     //	cout << s << "\n";
  38. 	    M[s] =M[s]+1;
  39. 	    }
  40. 	cout << ans << "\n";
  41.     return 0;}
  42.  
  43. // look at my code
  44. // my code is amazing
Success #stdin #stdout 0s 3436KB
comments (?)
stdin
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5 -1
-1 1 -1 1 -1
stdout
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6
https://ideone.com/8WoKdR
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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