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Submission #1107268

# Submission time Handle Problem Language Result Execution time Memory
1107268 2024-11-01T05:35:15 Z jadai007 Aliens (IOI07_aliens) C++17
10 / 100
 2 ms 504 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
int n, xo, yo; 
string ck;
 
bool check(int x, int y){
    if(x < 1 || x > n || y < 1 || y > n) return false;
    cout << "examine " << x << ' ' << y << endl;
    cin >> ck;
    if(ck == "false") return false;
    return true;
}
 
int main(){
    cin >> n >> xo >> yo;
    int lx = xo, ly = yo, x, y;
    for(int j = 0; j < 3; ++j){
        for(int i = 31; i >= 0; --i){
            x = lx - (1<<i), y = ly;
            if(check(x, y)) lx = x, ly = y;
        }
    }
    for(int j = 0; j < 3; ++j){
        for(int i = 31; i >= 0; --i){
            x = lx, y = ly - (1<<i);
            if(check(x, y)) lx = x, ly = y;
        }
    }
    for(int i = 31; i >= 0; --i){
        x = lx - (1<<i), y = ly - (1<<i);
        if(check(x, y)) lx = x, ly = y;
    }
    int rx = lx;
    for(int i = 31; i >= 0; --i){
        int cx = rx + (1<<i);
        if(check(cx, ly)) rx = cx;
    }
    int sz = rx - lx + 1;
    int ry = ly + sz - 1;
    cout << "solution " << (lx + rx)/2 << ' ' << (ly + ry)/2;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 1 ms 336 KB Incorrect
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 504 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 2 ms 336 KB Incorrect
3 Halted 0 ms 0 KB -

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 336 KB Output is correct

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 336 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 336 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Incorrect 2 ms 336 KB Incorrect
3 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 336 KB Incorrect
2 Halted 0 ms 0 KB -