oj.uz

Submission #60920

# Submission time Handle Problem Language Result Execution time Memory
60920 2018-07-25T01:39:20 Z ksun48 Election (BOI18_election) C++14
28 / 100
 3000 ms 1384 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;

int n;
int q;
string s;
vector<int> psums;
int max_psum(int a, int b){
	int z = 0;
	for(int i = a; i <= b; i++){
		for(int j = i; j <= b; j++){
			z = max(psums[j] - psums[i], z);
		}
	}
	return z;
}
int main(){
	cin.sync_with_stdio(0); cin.tie(0);
	cin >> n >> s >> q;
	psums.push_back(0);
	for(int i = 0; i < s.size(); i++){
		if(s[i] == 'C'){
			psums.push_back(psums[psums.size() - 1] + 1);
		} else {
			psums.push_back(psums[psums.size() - 1] - 1);
		}
	}
	for(int i = 0; i < q; i++){
		int l, r;
		cin >> l >> r;
		l--; r--;
		r++;
		int a = max_psum(l, r);
		cout << a - (psums[r] - psums[l]) << '\n';
	}
}

Compilation message

election.cpp: In function 'int main()':
election.cpp:22:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < s.size(); i++){
                 ~~^~~~~~~~~~

Subtask #1
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 447 ms 388 KB Output is correct
2 Correct 453 ms 484 KB Output is correct
3 Correct 466 ms 560 KB Output is correct
4 Correct 470 ms 660 KB Output is correct
5 Correct 501 ms 660 KB Output is correct

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 447 ms 388 KB Output is correct
2 Correct 453 ms 484 KB Output is correct
3 Correct 466 ms 560 KB Output is correct
4 Correct 470 ms 660 KB Output is correct
5 Correct 501 ms 660 KB Output is correct
6 Execution timed out 3040 ms 1384 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 447 ms 388 KB Output is correct
2 Correct 453 ms 484 KB Output is correct
3 Correct 466 ms 560 KB Output is correct
4 Correct 470 ms 660 KB Output is correct
5 Correct 501 ms 660 KB Output is correct
6 Execution timed out 3040 ms 1384 KB Time limit exceeded
7 Halted 0 ms 0 KB -