Submission #830379

#	Time	Username	Problem	Language	Result	Execution time	Memory
830379		Minindu206	Horses (IOI15_horses)	C++14	34 / 100	1594 ms	12064 KiB

horses

#include "horses.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int n;
ll lim = (ll)1e9 + 10;
vector<int> x, y;
vector<ll> cr;
ll ans = 0;
// void rec(int ind, ll h, vector<ll> cur, ll cprof)
// {
// 	if (ind == n)
// 	{
// 		if (cprof > ans)
// 		{
// 			ans = cprof;
// 			cr.clear();
// 			cr = cur;
// 		}
// 		return;
// 	}
// 	if (h == 0)
// 	{
// 		if (cprof > ans)
// 		{
// 			ans = cprof;
// 			cr.clear();
// 			cr = cur;
// 		}
// 		return;
// 	}
// 	ll ch = h * x[ind];
// 	for (int i = 0; i <= ch; i++)
// 	{
// 		cur.push_back(i);
// 		rec(ind + 1, ch - i, cur, cprof + y[ind] * i);
// 		cur.pop_back();
// 	}
// }
ll prod()
{
	ll cur = 0, h = 1;
	for (int i = 0; i < n; i++)
	{
		h = h * x[i];
		cur = max(cur, h * y[i]);
		// cout << cur << " ";
	}
	return cur % ((ll)1e9 + 7);
}
ll prof()
{
	ll cx = 1;
	ll cbest = y[0], loc = 0;
	for (int i = 1; i < n; i++)
	{
		cx = cx * x[i];
		if (cx * y[i] > cbest)
		{
			cbest = y[i];
			cx = 1;
			loc = i;
		}
	}
	cx = 1;
	for (int i = 0; i <= loc; i++)
	{
		cx = (cx * x[i]) % ((ll)1e9 + 7);
	}
	return (cx * y[loc]) % ((ll)1e9 + 7);
}
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];
	}
	cr.resize(n);
	return prof();
}

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

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

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:82:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   82 |  return prof();
      |         ~~~~^~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:88:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   88 |  return prof();
      |         ~~~~^~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:94:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   94 |  return prof();
      |         ~~~~^~

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