Submission #1117068

#	Time	Username	Problem	Language	Result	Execution time	Memory
1117068		Zflop	Horses (IOI15_horses)	C++14	Compilation error	0 ms	0 KiB

horses

#include <bits/stdc++.h>
using namespace std;
 
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;

#define ll long long
const int NMAX = (int)1e5 * 6;
const ll MOD = (int)1e9 + 7;
ll A[NMAX],B[NMAX],n;
ll POW(ll x,int p) {
	ll res = 1;
	while (p) {
		if (p % 2) 
			res = res * x % MOD;
		p /= 2;
		x = x * x % MOD;
		}
	return res;
	}
int init(int N, int X[], int Y[]) {
	for (int i = 0; i < N;++i) {
		A[i] = X[i];
		B[i] = Y[i];
		}
	n = N;
	ll ans = X[0] * Y[0] % MOD;
	ll y_ans = Y[0];
	int i_ans = 0;
	ll x = X[0];
	for (int i = 1; i < N;++i) {
		x = x * X[i] % MOD;
		int x_cur = 1;
		bool ok = false;
		for (int j = i_ans + 1; j <= i;++j) {
			x_cur = x_cur * X[i];
			if (x_cur > MOD) {
				ok = true;
				}
			x_cur %= MOD;
			}	
		if (x_cur * Y[i] > y_ans) 
			ok = true;
		if (ok) {
			y_ans = Y[i];
			i_ans = i;
			ans = x * Y[i] % MOD;
			}
		}
	return ans;
}

int updateX(int pos, int val) {	
	A[pos] = val;
	return init(n,A,B);
}

int updateY(int pos, int val) {
	B[pos] = val;
	return init(n,A,B);
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:50:9: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   50 |  return ans;
      |         ^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:55:14: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   55 |  return init(n,A,B);
      |              ^
horses.cpp:55:16: error: cannot convert 'long long int*' to 'int*'
   55 |  return init(n,A,B);
      |                ^
      |                |
      |                long long int*
horses.cpp:21:21: note:   initializing argument 2 of 'int init(int, int*, int*)'
   21 | int init(int N, int X[], int Y[]) {
      |                 ~~~~^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:60:14: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   60 |  return init(n,A,B);
      |              ^
horses.cpp:60:16: error: cannot convert 'long long int*' to 'int*'
   60 |  return init(n,A,B);
      |                ^
      |                |
      |                long long int*
horses.cpp:21:21: note:   initializing argument 2 of 'int init(int, int*, int*)'
   21 | int init(int N, int X[], int Y[]) {
      |                 ~~~~^~~