Submission #203577

#	Time	Username	Problem	Language	Result	Execution time	Memory
203577		mohammad	Horses (IOI15_horses)	C++14	0 / 100	1597 ms	12152 KiB

horses

/*
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*/
 
#include<bits/stdc++.h>
#include "horses.h"
using namespace std;
 
typedef long long ll ;
const ll oo = 1e13 ;
const double PI = acos(-1) ;
const ll M = 1e9 + 7  ;
 
ll x[500010] , y[500010] , n;
 
 
int init(int N, int X[], int Y[]){
	n = N;
	for(int i = 0 ; i < N ; ++i) x[i] = X[i] , y[i] = Y[i];
	ll x1 = 1 , pl = 0 , ans = 1;
	for(int i = N - 31 ; i < N ; ++i){
		x1 *= x[i];
		if(y[pl] < x1 * y[i])
			x1 = 1 ,pl = i ;
	}
	for(int i = 0 ; i <= pl ; ++i) ans = (ans * x[i]) % M;
	return (ans * y[pl]) % M;
}
 
int updateX(int pos, int val){
	x[pos] = val;
	ll x1 = 1 , pl = 0 , ans = 1;
	for(int i = n - 31 ; i < n ; ++i){
		x1 *= x[i];
		if(y[pl] < x1 * y[i])
			x1 = 1 ,pl = i ;
	}
	for(int i = 0 ; i <= pl ; ++i) ans = (ans * x[i]) % M;
	return (ans * y[pl]) % M;
}
 
int updateY(int pos, int val){
	y[pos] = val;
	ll x1 = 1 , pl = 0 , ans = 1;
	for(int i = n - 31 ; i < n; ++i){
		x1 *= x[i];
		if(y[pl] < x1 * y[i])
			x1 = 1 ,pl = i ;
	}
	for(int i = 0 ; i <= pl ; ++i) ans = (ans * x[i]) % M;
	return (ans * y[pl]) % M;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:42:23: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return (ans * y[pl]) % M;
         ~~~~~~~~~~~~~~^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:48:16: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  for(int i = n - 31 ; i < n ; ++i){
              ~~^~~~
horses.cpp:54:23: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return (ans * y[pl]) % M;
         ~~~~~~~~~~~~~~^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:60:16: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  for(int i = n - 31 ; i < n; ++i){
              ~~^~~~
horses.cpp:66:23: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return (ans * y[pl]) % M;
         ~~~~~~~~~~~~~~^~~

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