oj.uz

Submission #431271

# Submission time Handle Problem Language Result Execution time Memory
431271 2021-06-17T10:38:14 Z milleniumEeee Aliens (IOI07_aliens) C++17
0 / 100
 1 ms 200 KB 
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pii pair<int, int>
#define pb push_back
#define szof(s) (int)s.size()
#define all(s) s.begin(), s.end()
#define int long long
template<class T>void chmax(T &a, T b){if (a < b)a = b;}
template<class T>void chmin(T &a, T b){if (b < a)a = b;}
using namespace std;


const int KEK = -1337;

int n, x, y;

int pw(int x) {
	return (1ll << x);
}

bool in(int pos) {
	return pos >= 1 && pos <= n;
}

bool ask(int x, int y) {
	if (in(x) && in(y)) {
		cout << "examine " << x << " " << y << endl;
		string res;
		return res == "true";		
	} else {
		return false;
	}
}

signed main() {
	cin >> n >> x >> y;
	int X = x, Y = y;
	int max_x, max_y;
    for (int i = 2; ; i *= 2) {
        if (!ask(x, y + i)) {
            for (int j = i / 2; j > 0; j /= 2) {
                if (ask(x, y + j)) {
                    y += j;
                }
            }
            max_y = y;
            y = Y;
            break;
        }
    }
    for (int i = 2; ; i *= 2) {
        if (!ask(x + i, y)) {
            for (int j = i / 2; j > 0; j /= 2) {
                if (ask(x + j, y)) {
                    x += j;
                }
                max_x = x;
                x = X;
            }
            break;
        }
    }
    int curx = max_x, cury = max_y;
    int min_y;
    for (int i = 2; ; i *= 2) {
        if (!ask(curx, cury - i)) {
			int cc = cury;
            for (int j = i / 2; j > 0; j /= 2) {
                if (ask(X, cc - j)) {
                    cc -= j;
                }
            }
            min_y = cc;
            break;
        }
    }
    int len = max_y - min_y + 1;
    int cur_x = max_x;
    int cur_y = max_y;
    while (ask(cur_x + len, cur_y + len)) {
        cur_x += len;
        cur_y+= len;
    }
    while (ask(cur_x, cur_y + len * 2)) {
        cur_y += len * 2;
    }
    while (ask(cur_x + len * 2, cur_y)) {
        x += len * 2;
    }
    cout << "solution " << cur_x - len * 2 - len / 2 << " " << cur_y - len * 2 - len / 2 << std::endl;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 200 KB Incorrect
2 Halted 0 ms 0 KB -