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Submission #1060507

# Submission time Handle Problem Language Result Execution time Memory
1060507 2024-08-15T16:29:49 Z Halym2007 Aliens (IOI07_aliens) C++17
20 / 100
 3 ms 440 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define sz size()
#define ff first
#define ss second
#define pb push_back
#define pii pair <ll, ll>
const int N = 2e5 + 5;


ll n, sorag = 0;
ll m = 1;
bool ask (ll jj, ll kk) {
//	if (jj > n or kk > n) return 0;
//	if (jj < 1 or kk < 1) return 0;
	sorag++;
//	assert (sorag <= 300 and m <= 100);
	cout << "examine " << jj << " " << kk << endl;
	cout << flush;
	string s;
	cin >> s;
	if (s[0] == 't') return 1;
	return 0;
}


int main () {
//	freopen ("input.txt", "r", stdin);
//	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);	
	ll a, b;
	cin >> n >> a >> b;
	ll l = a, r = a;
	while (l > 1) {
		if (!ask(l - 1, b)) {
			break;
		}
		l--;
		m++;
	}
	while (r < n) {
		if (!ask(r + 1, b)) break;
		r++;
		m++;
	}

	ll l1 = b, r1 = b;
	while (l1 > 1) {
		if (!ask(a, l1 - 1)) {
			break;
		}
		l1--;
	}
	while (r1 < n) {
		if (!ask(a, r1 + 1)) break;
		r1++;
	}	
//	return 0;
	ll x = l, y = r1;
	while (x > m) {
		if (!ask(x - m, y)) break;
		x -= m;
	}
	if (x > m and y + m <= n) {
		if (ask(x - m, y + m)) {
			x -= m;
			y += m;
		}
	}
	while (y + 2 * m <= n) {
		if (!ask (x, y + 2LL * m)) {
			break;
		}
		y += 2*m;
	}
	
	ll jog1 = (x + 2 * m) + (m / 2LL), jog2 = (y - (2LL * m)) - (m / 2);
	cout << "solution " << jog1 << " " << jog2;
	
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 344 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 440 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -