Submission #620642

#	Time	Username	Problem	Language	Result	Execution time	Memory
620642		mdn2002	Horses (IOI15_horses)	C++14	34 / 100	22 ms	12188 KiB

horses

#include "horses.h"

#include<bits/stdc++.h>
using namespace std;
long long n , m , mod = 1e9 + 7 , x [1003] , y [1003];
long long get ( )
{
    long long bst = 0 , mul = 1;
    for ( int i = 1 ; i < n ; i ++ )
    {
        mul *= x [i];
        if ( mul > y [bst] )
        {
            mul = 1;
            bst = i;
            continue;
        }
        long long almul = mul * y [i];
        if ( almul > y [bst] )
        {
            mul = 1;
            bst = i;
        }
    }
    long long ans = 1;
    for ( int i = 0 ; i <= bst ; i ++ ) ans = ( ans * x [i] ) % mod;
    ans = ( ans * y [bst] ) % mod;
    return ans;
}

int init(int N, int X[], int Y[]) {

	n = N;
    for ( int i = 0 ; i < n ; i ++ ) x [i] = X [i];
    for ( int i = 0 ; i < n ; i ++ ) y [i] = Y [i];
    return get ();

}

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

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

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:36:16: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   36 |     return get ();
      |            ~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:42:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   42 |  return get ();
      |         ~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:47:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   47 |  return get ();
      |         ~~~~^~

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