oj.uz

Submission #257964

# Submission time Handle Problem Language Result Execution time Memory
257964 2020-08-05T06:32:32 Z 임성재(#5053) Toilets (JOI16_toilets) C++17
0 / 100
 3 ms 3456 KB 
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(NULL)
#define fi first
#define se second
#define pb push_back
#define eb emplace_back
#define em emplace
#define all(v) (v).begin(), (v).end()
#define pre(a) cout<<fixed; cout.precision(a)
#define mp make_pair

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

ll n, m;
string s[100010];
int k[100010];
int F[100010], M[100010];

int main() {
	fast;

	cin >> n;
	cin >> m;

	for(int i=1; i<=m; i++) {
		cin >> s[i] >> k[i];
	}

	for(int i=0; i<s[1].size(); i++) {
		F[i+1] = F[i];
		M[i+1] = M[i];

		if(s[1][i] == 'F') F[i+1]++;
		else M[i+1]++;
	}

	if(F[n] < M[n]) {
		cout << -1;
		return 0;
	}

	int ans = 0;
	for(int i=0; i<s[1].size(); i++) {
		if(s[1][i] == 'F') ans = max(ans, (M[n] - M[i]) - (F[n] - F[i]));
	}

	cout << ans;
}

Compilation message

toilets.cpp: In function 'int main()':
toilets.cpp:35:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<s[1].size(); i++) {
               ~^~~~~~~~~~~~
toilets.cpp:49:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<s[1].size(); i++) {
               ~^~~~~~~~~~~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3456 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3456 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 64.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 3456 KB Output isn't correct
2 Halted 0 ms 0 KB -