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Submission #428052

# Submission time Handle Problem Language Result Execution time Memory
428052 2021-06-15T07:40:44 Z jeqcho The Big Prize (IOI17_prize) C++17
20 / 100
 1 ms 300 KB 
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpi;

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define F0R(i,b) FOR(i,0,b)
#define ROF(i,a,b) for(int i=(b)-1;i>=(a);--i)
#define R0F(i,b) ROF(i,0,b)
#define all(x) begin(x),end(x)
#define push_back pb;
#define trav(a,x) for(auto&a:x)
#define sz(x) int(x.size())

bool check(int mid)
{
	vi res = ask(mid);
	int lcnt = res[0];
	return lcnt==0;
}

int find_best(int n) {
	int lef=0;
	int rig=n-1;
	int ans=-1;
	while(lef<=rig)
	{
		int mid=(lef+rig)/2;
		if(check(mid))
		{
			lef=mid+1;
			ans=mid;
		}
		else
		{
			rig=mid-1;
		}
	}
	return ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 264 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 276 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 280 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 280 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 280 KB Output is correct
2 Correct 1 ms 276 KB Output is correct
3 Correct 1 ms 284 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 280 KB Output is correct
9 Correct 1 ms 280 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Incorrect 1 ms 284 KB answer is not correct
12 Halted 0 ms 0 KB -