Submission #114798

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
114798	2019-06-02 22:25:08	MohamedAhmed04	Mountains (IOI17_mountains)	C++14	100 / 100	35 ms	16384 KiB

mountains

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#include "mountains.h"
#include <bits/stdc++.h>
using namespace std ;
const int MAX = 2005 ;
int dp[MAX][MAX] ;
int n ;
vector<int>v ;
/*long double slope(int a , int b , int a2 , int b2)
{
    long double x = a * 1.0000 ;
    long double y = b * 1.0000 ;
    long double x2 = a2 * 1.0000 ;
    long double y2 = b2 * 1.0000 ;
    return ((y2-y) / (x2-x)) ;
}*/
bool check(int a,int b,int c)
{
    return 1ll * (v[a]*1ll - v[b] * 1ll) * (a*1ll - c*1ll) > 1ll * (v[a] * 1ll - v[c] * 1ll) * (a * 1ll - b * 1ll);
}
int solve(int l , int r)
{
    if(l >= r)
        return (l == r) ;
    int &ret = dp[l][r] ;
    if(ret != -1)
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 30 / 30