Submission #135408

#	Time	Username	Problem	Language	Result	Execution time	Memory
135408		StevenH	Horses (IOI15_horses)	C++14	17 / 100	18 ms	8696 KiB

horses

#include "horses.h"
#include <iostream>
using namespace std;
long long s[10000];
long long mx=-1;
int n;
int x[10000],y[10000];
int init(int N, int X[], int Y[]) {
	n=N;
	s[0]=X[0];
	x[0]=X[0];
	y[0]=Y[0];
	mx = s[0]*Y[0];
	for(int i=1;i<N;i++)
	{
		x[i]=X[i];
		y[i]=Y[i];
		s[i]=s[i-1]*X[i];
		if(s[i]*Y[i]>mx)mx=s[i]*Y[i];
	}
	return mx%1000000007;
}

int updateX(int pos, int val) {	
	x[pos]=val;
	if(pos==0)
	{
		s[0]=x[0];
		if(x[0]*y[0]>mx)
			mx=x[0]*y[0];
	}

	for(int i=max(pos,1);i<n;i++)
		s[i]=s[i-1]*x[i];
	
	mx=-1;
	for(int i=0;i<n;i++)
	{
		if(s[i]*y[i]>mx)mx=s[i]*y[i];
	}
	return mx%1000000007;
}

int updateY(int pos, int val) {
	y[pos]=val;
	mx=-1;
	for(int i=0;i<n;i++)
		if(s[i]*y[i]>mx)
			mx=s[i]*y[i];
	return mx%1000000007;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:21:11: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
  return mx%1000000007;
         ~~^~~~~~~~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:41:11: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
  return mx%1000000007;
         ~~^~~~~~~~~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:50:11: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
  return mx%1000000007;
         ~~^~~~~~~~~~~

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