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Submission #96309

# Submission time Handle Problem Language Result Execution time Memory
96309 2019-02-08T09:55:51 Z figter001 The Big Prize (IOI17_prize) C++14
20 / 100
 121 ms 1080 KB 
#include "prize.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int maxn = 2e5+50;

int l,r,dp[maxn],ans;

void qu(int a){
	if(dp[a])return;
	dp[a] = 1;
	vector<int> res = ask(a);
	if(res[0] + res[1] == 1){
		if(res[0])r = a-1;
		else l = a+1;
	}
	if(res[0] + res[1] == 0){
		ans = a;
	}
}

int find_best(int n) {
	srand(time(0));
	l=0;r=n-1;
	ans = -1;
	while(1){
		int a = l + (rand() % (r-l+1));
		qu(a);
		if(ans != -1)return ans;
	}
	int a = l + (rand() % (r-l+1));
	return a;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 436 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 2 ms 516 KB Output is correct
4 Correct 2 ms 388 KB Output is correct
5 Correct 2 ms 248 KB Output is correct
6 Correct 2 ms 248 KB Output is correct
7 Correct 2 ms 404 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 420 KB Output is correct
10 Correct 2 ms 412 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 328 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 260 KB Output is correct
4 Correct 2 ms 248 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 248 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 248 KB Output is correct
9 Correct 2 ms 248 KB Output is correct
10 Correct 2 ms 248 KB Output is correct
11 Incorrect 121 ms 1080 KB Incorrect
12 Halted 0 ms 0 KB -