Submission #206126

#	Time	Username	Problem	Language	Result	Execution time	Memory
206126		awlintqaa	Horses (IOI15_horses)	C++14	17 / 100	563 ms	10360 KiB

horses

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 200
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
typedef long long ll;
typedef short int si;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll mod=1e9+7;
const ll inf= 4e18;
const ld pai=acos(-1);
#include "horses.h"
ll n ;
ll a[100009] , cost [100009];
ll dp[19][1009];
ll bt(ll id,ll num){
        if ( id== n )return 0;
        ll &ret=dp[id][num];
        if ( ret !=-1 )return ret;
        ret =0 ;
        num *= a[id];
        for ( int i =0 ;i <= num  ;i ++ ){
                ret = max ( ret ,bt (id+1, num - i ) + i * (cost[id]%mod) );
          		ret %= mod;
        }
        return ret;
}
int init(int N, int X[], int Y[]) {
        mem ( dp ,-1 );
        n = N;
        for ( int i =0 ;i < n ;i ++ ) a[i]=X[i];
        for ( int i =0 ;i < n ;i ++ ) cost [i] = Y [i];
        return bt(0,1);
}
int updateX(int pos, int val) {
        return 0;
}

int updateY(int pos, int val) {
        return 0;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:50:18: warning: conversion to 'int' from 'll {aka long long int}' may alter its value [-Wconversion]
         return bt(0,1);
                ~~^~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:52:17: warning: unused parameter 'pos' [-Wunused-parameter]
 int updateX(int pos, int val) {
                 ^~~
horses.cpp:52:26: warning: unused parameter 'val' [-Wunused-parameter]
 int updateX(int pos, int val) {
                          ^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:56:17: warning: unused parameter 'pos' [-Wunused-parameter]
 int updateY(int pos, int val) {
                 ^~~
horses.cpp:56:26: warning: unused parameter 'val' [-Wunused-parameter]
 int updateY(int pos, int val) {
                          ^~~

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