Submission #251342

#	Time	Username	Problem	Language	Result	Execution time	Memory
251342		DavidDamian	Horses (IOI15_horses)	C++11	Compilation error	0 ms	0 KiB

horses

#include "horses.h"
typedef long long ll;
#define mod 1000000007
int Y[500005];
int X[500005];
ll product[500005];
int n;
int init(int N, int y[], int x[]) {
	n=N;
	for(int i=0;i<n;i++){
        X[i]=x[i];
        Y[i]=y[i];
	}
	ll maximum=0;
	product[0]=X[0];
	maximum=X[0]*Y[0];
	for(int i=1;i<n;i++){
        product[i]=product[i-1]*X[i];
        maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
	}
	return maximum%mod;
}

int updateX(int pos, int val) {
	ll maximum=0;
	X[pos]=val;
	product[0]=X[0];
	maximum=X[0]*Y[0];
	for(int i=1;i<n;i++){
        product[i]=product[i-1]*X[i];
        maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
	}
	return maximum%mod;
}

int updateY(int pos, int val) {
	ll maximum=0;
	Y[pos]=val;
	product[0]=X[0];
	maximum=X[0]*Y[0];
	for(int i=1;i<n;i++){
        product[i]=product[i-1]*X[i];
        maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
	}
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:19:17: error: 'max' was not declared in this scope
         maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
                 ^~~
horses.cpp:21:16: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return maximum%mod;
                ^
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:31:17: error: 'max' was not declared in this scope
         maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
                 ^~~
horses.cpp:33:16: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
  return maximum%mod;
                ^
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:43:17: error: 'max' was not declared in this scope
         maximum=max(maximum,(ll)product[i]*(ll)Y[i]);
                 ^~~
horses.cpp:45:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^