제출 #375186

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
375186		div2der	Po (COCI21_po)	C++14	10 / 70	11 ms	364 KiB

Main

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")

//#include <bits/stdc++.h>

#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <set>
#include <map>
#include <iomanip>

using namespace std;

const int N = 1e6;
const int inf = 1e9 + 7;
const int mod = 1e9 + 7;
const int INF = 1e9 + 13;
const int NN = 2e3;

#define sz(s) (int)(s.size())
#define all(x) x.begin(), x.end()
#define eb emplace_back
#define ll long long

void init(const string &prob) {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	if (prob != "default") {
		freopen((prob + ".txt").c_str(), "r", stdin);
		freopen((prob + ".txt").c_str(), "w", stdout);
	}
}

void solve() {
	int n;
	cin >> n;
	int prev = -1, cnt = 1;
	for (int i = 1; i <= n; ++ i) {
		int x;
		cin >> x;
		if (prev == -1) {
			prev = x;
			continue;
		}
		else {
			if (prev < x)
				++cnt;
			prev = x;
		}
	}
	cout << cnt << '\n';
	return;
}

int main() {
	init("default");
	int tt = 1;

	while (tt--) {
		solve();
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void init(const string&)':
Main.cpp:32:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   32 |   freopen((prob + ".txt").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:33:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   33 |   freopen((prob + ".txt").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 70