Submission #918758

#TimeUsernameProblemLanguageResultExecution timeMemory
918758AiperiiiHorses (IOI15_horses)C++14
17 / 100
1538 ms14008 KiB
#include <bits/stdc++.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:11:30: warning: declaration of 'Y' shadows a global declaration [-Wshadow]
   11 | int init(int N, int X[], int Y[]) {
      |                          ~~~~^~~
horses.cpp:9:10: note: shadowed declaration is here
    9 | int X[N],Y[N];
      |          ^
horses.cpp:11:21: warning: declaration of 'X' shadows a global declaration [-Wshadow]
   11 | int init(int N, int X[], int Y[]) {
      |                 ~~~~^~~
horses.cpp:9:5: note: shadowed declaration is here
    9 | int X[N],Y[N];
      |     ^
horses.cpp:11:14: warning: declaration of 'N' shadows a global declaration [-Wshadow]
   11 | int init(int N, int X[], int Y[]) {
      |          ~~~~^
horses.cpp:8:11: note: shadowed declaration is here
    8 | const int N=1e5,mod=1e9+7;
      |           ^
horses.cpp:19:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   19 |    int n=x.size()-1;
      |          ~~~~~~~~^~
horses.cpp:25:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   25 |    return mx%mod;
      |           ~~^~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:32:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   32 |    int n=x.size()-1;
      |          ~~~~~~~~^~
horses.cpp:38:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   38 |    return mx%mod;
      |           ~~^~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:45:18: warning: conversion from 'std::vector<long long int>::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   45 |    int n=y.size()-1;
      |          ~~~~~~~~^~
horses.cpp:51:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   51 |    return mx%mod;
      |           ~~^~~~
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