제출 #802113

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
802113		jlallas384	Horses (IOI15_horses)	C++17	34 / 100	1568 ms	8144 KiB

horses

#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int mod = 1e9 + 7;

vector<int> x, y;
int n;

int solve(){
	ll hv = 1;
	for(int i = 0; i < n; i++){
		hv = hv * x[i] % mod;
		ll pre = 1;
		ll bst = 0;
		for(int j = i + 1; j < n; j++){
			if(bst == -1) break;
			pre *= x[j];
			if(pre > 1e9) bst = -1;
			else bst = max(bst, pre * y[j]);
		}
		if(bst != -1 && y[i] > bst){
			return hv * y[i] % mod;
		}
	}
}

int init(int N, int X[], int Y[]) {
	n = N;
	x.resize(n), y.resize(n);
	for(int i = 0; i < n; i++){
		x[i] = X[i];
		y[i] = Y[i];
	}
	return solve();
}


int updateX(int pos, int val) {	
	x[pos] = val;
	return solve();
}

int updateY(int pos, int val) {
	y[pos] = val;
	return solve();
}

컴파일 시 표준 에러 (stderr) 메시지

horses.cpp: In function 'int solve()':
horses.cpp:19:7: warning: conversion from 'll' {aka 'long long int'} to 'double' may change value [-Wconversion]
   19 |    if(pre > 1e9) bst = -1;
      |       ^~~
horses.cpp:23:21: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   23 |    return hv * y[i] % mod;
      |           ~~~~~~~~~~^~~~~
horses.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type]
   26 | }
      | ^

• Subtask 1: 17 / 17
• Subtask 2: 17 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23