제출 #919168

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
919168		TIN	Baloni (COCI15_baloni)	C++17	100 / 100	48 ms	7760 KiB

baloni

#include <bits/stdc++.h>

using namespace std;

#define FNAME "test"

const int N = 1e6 + 5;

int n;
int h[N];
int p[N];
int res = 0;

void Task() {
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cout << fixed << setprecision(9);
	if (fopen(FNAME".inp","r")) {
		freopen(FNAME".inp","r",stdin);
		freopen(FNAME".out","w",stdout);
	}
}

void Solve() {
	//Your Code
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> h[i];
	memset(p, 0, sizeof(p));
	for (int i = 1; i <= n; i++) {
		if (p[h[i] + 1] > 0) p[h[i] + 1]--;
		else res++;
		p[h[i]]++;
	}
	cout << res << '\n';
}

int main() {
	Task();
	Solve();
	cerr << "\nTime run: " << 1000*clock()/CLOCKS_PER_SEC << "ms";
	return 37^37;
}

컴파일 시 표준 에러 (stderr) 메시지

baloni.cpp: In function 'void Task()':
baloni.cpp:19:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   freopen(FNAME".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
baloni.cpp:20:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   freopen(FNAME".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100