Submission #918761

#	Time	Username	Problem	Language	Result	Execution time	Memory
918761		Aiperiii	Horses (IOI15_horses)	C++14	17 / 100	1527 ms	12756 KiB

horses

#include <bits/stdc++.h>
#include "horses.h"
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=1e5,mod=1e9+7;
int X[N],Y[N];
vector <ll> x,y;
int init(int N, int X[], int Y[]) {
   x.pb(0);y.pb(0);
   for(int i=0;i<N;i++){
      x.pb(X[i]);
      y.pb(Y[i]);
   }
   ll d=1;
   ll mx=0;
   int n=x.size()-1;
   for(int i=1;i<=n;i++){
      d*=x[i];
      d%=mod;
      mx=max(mx,(d*y[i])%mod);
   }
   return mx%mod;
}
int updateX(int pos,int val){
   pos++;
   x[pos]=val;
   ll d=1;
   ll mx=0;
   int n=x.size()-1;
   for(int i=1;i<=n;i++){
      d*=x[i];
      d%=mod;
      mx=max(mx,(d*y[i])%mod);
   }
   return mx%mod;
}
int updateY(int pos,int val){
   pos++;
   y[pos]=val;
   ll d=1;
   ll mx=0;
   int n=y.size()-1;
   for(int i=1;i<=n;i++){
      d*=x[i];
      d%=mod;
      mx=max(mx,(d*y[i])%mod);
   }
   return mx%mod;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:12:30: warning: declaration of 'Y' shadows a global declaration [-Wshadow]
   12 | int init(int N, int X[], int Y[]) {
      |                          ~~~~^~~
horses.cpp:10:10: note: shadowed declaration is here
   10 | int X[N],Y[N];
      |          ^
horses.cpp:12:21: warning: declaration of 'X' shadows a global declaration [-Wshadow]
   12 | int init(int N, int X[], int Y[]) {
      |                 ~~~~^~~
horses.cpp:10:5: note: shadowed declaration is here
   10 | int X[N],Y[N];
      |     ^
horses.cpp:12:14: warning: declaration of 'N' shadows a global declaration [-Wshadow]
   12 | int init(int N, int X[], int Y[]) {
      |          ~~~~^
horses.cpp:9:11: note: shadowed declaration is here
    9 | const int N=1e5,mod=1e9+7;
      |           ^
horses.cpp:20:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   20 |    int n=x.size()-1;
      |          ~~~~~~~~^~
horses.cpp:26:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   26 |    return mx%mod;
      |           ~~^~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:33:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   33 |    int n=x.size()-1;
      |          ~~~~~~~~^~
horses.cpp:39:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   39 |    return mx%mod;
      |           ~~^~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:46:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   46 |    int n=y.size()-1;
      |          ~~~~~~~~^~
horses.cpp:52:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   52 |    return mx%mod;
      |           ~~^~~~

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