Submission #824244

#	Time	Username	Problem	Language	Result	Execution time	Memory
824244		Nelt	Horses (IOI15_horses)	C++17	17 / 100	1574 ms	14208 KiB

horses

#include "horses.h"
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

/* DEFINES */
#define S second
#define F first
#define ll long long
#define ull unsigned long long
#define ld long double
#define npos ULLONG_MAX
#define INF LLONG_MAX
#define vv(a) vector<a>
#define pp(a, b) pair<a, b>
#define pq(a) priority_queue<a>
#define qq(a) queue<a>
#define ss(a) set<a>
#define mm(a, b) map<a, b>
#define ump(a, b) unordered_map<a, b>
#define ANDROID                   \
    ios_base::sync_with_stdio(0); \
    cin.tie(0);                   \
    cout.tie(0);
#define elif else if
#define endl "\n"
#define allc(a) begin(a), end(a)
#define all(a) a, a + sizeof(a) / sizeof(a[0])
#define pb push_back
#define logi(a) __lg(a)
#define sqrt(a) sqrtl(a)
#define mpr make_pair
#define ins insert
using namespace std;
using namespace __gnu_pbds;
using namespace __cxx11;
typedef char chr;
typedef basic_string<chr> str;
template <typename T, typename key = less<T>>
using ordered_set = tree<T, null_type, key, rb_tree_tag, tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll N = 5e5 + 5, mod = 1e9 + 7;
ll a[N], b[N], n;
int init(int N, int X[], int Y[]) {
	n = N;
	for (ll i = 0; i < n; i++)
		a[i] = X[i], b[i] = Y[i];
	ll ans = 0, res = 1;
	for (ll i = 0; i < n; i++)
		res *= a[i], ans = max(ans, res * b[i]);
	return ans;
}

int updateX(int pos, int val) {	
	a[pos] = val;
	ll ans = 0, res = 1;
	for (ll i = 0; i < n; i++)
		res *= a[i], ans = max(ans, res * b[i]);
	return ans;
}

int updateY(int pos, int val) {
	b[pos] = val;
	ll ans = 0, res = 1;
	for (ll i = 0; i < n; i++)
		res *= a[i], ans = max(ans, res * b[i]);
	return ans;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:47:14: warning: declaration of 'N' shadows a global declaration [-Wshadow]
   47 | int init(int N, int X[], int Y[]) {
      |          ~~~~^
horses.cpp:45:10: note: shadowed declaration is here
   45 | const ll N = 5e5 + 5, mod = 1e9 + 7;
      |          ^
horses.cpp:54:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   54 |  return ans;
      |         ^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:62:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   62 |  return ans;
      |         ^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:70:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   70 |  return ans;
      |         ^~~

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