제출 #380444

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
380444		penguinhacker	Vepar (COCI21_vepar)	C++14	70 / 70	334 ms	15640 KiB

Main

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int MX = 10000001;
bool p[MX];
vector<int> primes;

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	memset(p, 1, sizeof(p));
	for (int i = 2; i < MX; ++i) {
		if (!p[i])
			continue;
		primes.push_back(i);
		if ((ll)i * i >= MX)
			continue;
		for (int j = i * i; j < MX; j += i)
			p[j] = 0;
	}
	int t; cin >> t;
	for (int a, b, c, d; t--;) {
		cin >> a >> b >> c >> d;
		vector<int> ct(primes.size());
		auto Upd = [&](int n, int i, int inc) {
			int x = primes[i];
			n /= x;
			while(n) {
				ct[i] += inc * n;
				n /= x;
			}
		};
		for (int i = 0; i < primes.size(); ++i) {
			Upd(d, i, 1);
			Upd(c - 1, i, -1);
			Upd(b, i, -1);
			Upd(a - 1, i, 1);
		}
		cout << (*min_element(ct.begin(), ct.end()) >= 0 ? "DA" : "NE") << "\n";
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:36:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for (int i = 0; i < primes.size(); ++i) {
      |                   ~~^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10