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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. void printVec(vector<char> f){
  5. 	for(int i=0;i<f.size();i++){
  6. 		cout << f[i];
  7. 	}
  8. 	cout << endl;
  9. }
  10.  
  11. int main() {
  12. 	int n,q,l,r;
  13. 	string s;
  14. 	cin >> n >> q >> s;
  15.  
  16. 	int till_ith[n+1];
  17. 	till_ith[0] = 0;
  18.  
  19. 	for(int i=1;i<n+1;i++){
  20. 		till_ith[i] = s[i-1] - 'a' + 1 + till_ith[i-1];
  21. 	}
  22. 	while(q--){
  23. 		cin >> l >> r;
  24. 		cout << till_ith[r] - till_ith[l-1] << endl;
  25. 	}
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 5292KB
comments (?)
stdin
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7 3
abacaba
1 3
2 5
1 7
stdout
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4
7
11
https://ideone.com/wb30kI
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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