Submission #1039458

#	Time	Username	Problem	Language	Result	Execution time	Memory
1039458		HappyCapybara	Horses (IOI15_horses)	C++17	17 / 100	1562 ms	8028 KiB

horses

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

#define ll long long

int n;
vector<int> x, y;

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

	ll cur = 1, bsf = 0;
	for (int i=0; i<N; i++){
		cur *= x[i];
      bsf = max(bsf, cur*y[i]);
	}
	return bsf;
}

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

	double curd = 0, bsfd = 0;
	ll cur = 1, bsf = 0;
	for (int i=0; i<n; i++){
		curd += log(x[i]);
		cur = (cur*x[i]) % 1000000007;
		if (curd+log(y[i]) > bsfd){
			bsfd = curd+log(y[i]);
			bsf = (cur*y[i]) % 1000000007;
		}
	}
	return bsf;
}

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

	double curd = 0, bsfd = 0;
	ll cur = 1, bsf = 0;
	for (int i=0; i<n; i++){
		curd += log(x[i]);
		cur = (cur*x[i]) % 1000000007;
		if (curd+log(y[i]) > bsfd){
			bsfd = curd+log(y[i]);
			bsf = (cur*y[i]) % 1000000007;
		}
	}
	return bsf;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:24:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   24 |  return bsf;
      |         ^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:40:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   40 |  return bsf;
      |         ^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:56:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   56 |  return bsf;
      |         ^~~

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