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Submission #1038391

# Submission time Handle Problem Language Result Execution time Memory
1038391 2024-07-29T18:33:40 Z ArthuroWich Aliens (IOI07_aliens) C++17
20 / 100
 2 ms 600 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long int
int n;
bool query(int x, int y) {
    if (x < 1 || y < 1 || x > n || y > n) {
        return 0;
    }
    cout << "examine " << x << " " << y << endl;
    string s;
    cin >> s;
    if (s == "true") {
        return 1;
    } else {
        return 0;
    }
}
void solve() {
    int x0, y0;
    cin >> n >> x0 >> y0;
    int m = 1;
    int x = x0-1, y = y0, lx = x0, ly;
    while(query(x, y)) {
        lx = x;
        m++;
        x--;
    }
    x = x0+1;
    while(query(x, y)) {
        m++;
        x++;
    }
    x = lx, y = y0;
    while(query(x, y)) {
        ly = y;
        y--;
    }
    x = lx, y = ly;
    while(query(x, y)) {
        lx = x;
        ly = y;
        x -= m;
        y -= m;
    }
    x = lx;
    y = ly;
    while(query(x, y)) {
        lx = x;
        ly = y;
        x -= 2*m;
    }
    cout << "solution " << lx+5*m/2 << " " << ly+5*m/2 << endl;
}
int32_t main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t;
    t = 1;
    while(t--) {
        solve();
    }
}

Compilation message

aliens.cpp: In function 'void solve()':
aliens.cpp:22:36: warning: 'ly' may be used uninitialized in this function [-Wmaybe-uninitialized]
   22 |     int x = x0-1, y = y0, lx = x0, ly;
      |                                    ^~

Subtask #1
0 / 10.0

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

Subtask #2
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 #3
10.0 / 10.0

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

Subtask #4
0 / 10.0

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

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 600 KB Execution killed with signal 13
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

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

Subtask #7
0 / 10.0

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

Subtask #8
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 #9
0 / 10.0

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