oj.uz

Submission #61465

# Submission time Handle Problem Language Result Execution time Memory
61465 2018-07-26T04:47:11 Z 김세빈(#1779) Election (BOI18_election) C++11
0 / 100
 5 ms 376 KB 
#include <bits/stdc++.h>

using namespace std;

char str[505050];
int L[505050], R[505050];
int n;

int main()
{
	int q, i, l, r, a, b, k;
	
	scanf("%d%s%d", &n, str, &q);
	
	for(i=1; i<=n; i++){
		if(str[i-1] == 'C') L[i] = L[i-1] - 1;
		else L[i] = L[i-1] + 1;
	}
	
	for(i=n; i>=1; i--){
		if(str[i-1] == 'C') R[i] = R[i+1] - 1;
		else R[i] = R[i+1] + 1;
	}
	
	for(; q--; ){
		scanf("%d%d", &l, &r);
		
		k = 0;
		
		for(i=l; i<=r; i++){
			a = max(0, L[i] - L[l-1]);
			b = max(0, R[i] - R[r+1]);
			if(a && b) k = max(k, a + b - 1);
			else k = max(k, a + b);
		}
		
		printf("%d\n", k);
	}
	
	return 0;
}

Compilation message

election.cpp: In function 'int main()':
election.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%s%d", &n, str, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
election.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &l, &r);
   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -