# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
206126 | awlintqaa | Horses (IOI15_horses) | C++14 | 563 ms | 10360 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#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)
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