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Submission #951166

# Submission time Handle Problem Language Result Execution time Memory
951166 2024-03-21T09:40:56 Z Soshi85 Guess the number (BOI20_guess) C++17
100 / 100
 2 ms 596 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")//,bmi,bmi2,lzcnt,popcnt
#include<bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<ll, ll>;
using piii = pair<ll, pii>;

#define pb              push_back
#define F               first
#define S               second
#define len(x)          (int)x.size()
#define all(x)          x.begin(),x.end()
#define file            freopen("connect.in", "r", stdin);freopen("connect.out", "w", stdout);
#define kill(x)         {cout << x << '\n'; continue;}
#define int             long long
	
const int maxn = 3e3 + 5, maxm = 2e5, LG = 20, MOD = 1e9+7;// 998244353
const ll inf =  6e18;

//priority_queue< int, vector<int>, greater<int>> pq;  min heap
//priority_queue< int, vector<int>,  less<int> > pq;   max heap

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n;
signed main() {
	ios::sync_with_stdio(0), cin.tie(0);
	
	cin >> n;
	int l = 1, r = n+1;

	while(true) {
		int mid = (l + r) >> 1;
		cout << "? " << mid << endl;
		int x;
		cin >> x;
		if(x == -1) l = mid;
		else if(x == 1) r = mid;
		else if(x == 0) {cout << "= " << mid << endl; break;}
		
	}

}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 2 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 596 KB Output is correct
44 Correct 0 ms 344 KB Output is correct

Subtask #2
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 344 KB Output is correct
21 Correct 0 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 344 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 2 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 1 ms 596 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 0 ms 344 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 596 KB Output is correct
44 Correct 0 ms 344 KB Output is correct
45 Correct 1 ms 344 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 344 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 0 ms 344 KB Output is correct
52 Correct 0 ms 344 KB Output is correct
53 Correct 0 ms 344 KB Output is correct
54 Correct 0 ms 344 KB Output is correct
55 Correct 0 ms 344 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 0 ms 344 KB Output is correct
60 Correct 1 ms 344 KB Output is correct
61 Correct 0 ms 344 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 416 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 1 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 0 ms 344 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 1 ms 344 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 1 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 596 KB Output is correct
86 Correct 0 ms 344 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Correct 1 ms 344 KB Output is correct
89 Correct 1 ms 500 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 588 KB Output is correct
92 Correct 1 ms 344 KB Output is correct
93 Correct 0 ms 344 KB Output is correct
94 Correct 0 ms 344 KB Output is correct
95 Correct 0 ms 344 KB Output is correct
96 Correct 1 ms 344 KB Output is correct
97 Correct 0 ms 344 KB Output is correct
98 Correct 0 ms 344 KB Output is correct
99 Correct 0 ms 344 KB Output is correct
100 Correct 0 ms 344 KB Output is correct
101 Correct 0 ms 344 KB Output is correct
102 Correct 0 ms 344 KB Output is correct
103 Correct 0 ms 352 KB Output is correct
104 Correct 0 ms 344 KB Output is correct
105 Correct 0 ms 356 KB Output is correct
106 Correct 0 ms 344 KB Output is correct
107 Correct 1 ms 356 KB Output is correct
108 Correct 0 ms 344 KB Output is correct
109 Correct 0 ms 356 KB Output is correct