제출 #365400

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
365400		kostia244	popa (BOI18_popa)	C++17	37 / 100	285 ms	392 KiB

popa

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2")
#ifdef EVAL
#include"popa.h"
#endif
#include<bits/stdc++.h>
#define all(x) begin(x), end(x)
using namespace std;
using ll = long long;

namespace local {
	int ar[10010], qc = 0;
	int query(int a, int b, int c, int d) {
		qc++;
		int x = 0, y = 0;
		for(;a<=b;a++) x = __gcd(x, ar[a]);
		for(;c<=d;c++) y = __gcd(y, ar[c]);
		return x==y;
	}
};
#ifndef EVAL
using namespace local;
#endif

int fml(int l, int r, int *L, int *R) {
	if(l >= r) return -1;
	if(l+1 == r) return l;
	for(int x = l; x < r; x++)
		if(query(l, r-1, x, x)) {
			L[x] = fml(l, x, L, R);
			R[x] = fml(x+1, r, L, R);
			return x;
		}
}

int solve(int n, int *L, int *R) {
	vector<int> st;
	int rt = -1;
	vector<int> start(n);
	for(int i = 0; i < n; i++) L[i] = R[i] = -1;
	return fml(0, n, L, R);
}

#ifndef EVAL
int main() {
	cin.tie(0)->sync_with_stdio(0);
	//multitest([&](){});
	int n;
	cin >> n;
	for(int i = 1; i <= n; i++) cin >> ar[i];
	vector<int> L(n), R(n);
	cout << solve(n, L.data(), R.data()) << endl;
	for(int i = 0; i < n; i++) cout << L[i] << " " << R[i] << '\n';
	cout << " :: " << qc << endl;
}
#endif

컴파일 시 표준 에러 (stderr) 메시지

popa.cpp: In function 'int solve(int, int*, int*)':
popa.cpp:38:6: warning: unused variable 'rt' [-Wunused-variable]
   38 |  int rt = -1;
      |      ^~
popa.cpp: In function 'int fml(int, int, int*, int*)':
popa.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type]
   34 | }
      | ^

• Subtask 1: 37 / 37
• Subtask 2: 0 / 24
• Subtask 3: 0 / 39