Submission #808781

#	Time	Username	Problem	Language	Result	Execution time	Memory
808781		Liudas	Aliens (IOI07_aliens)	C++17	30 / 100	4 ms	300 KiB

aliens

#include <iostream>

using namespace std;

int main()
{
    int N, x, y;
    cin >> N >> x >> y;
    int u = 0, l = 0, r = 0, d = 0;
    bool flat = true;
    while(flat && x + r < N){
        cout << "examine " << x + r + 1 << " " << y << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            r ++;
        }
    }
    flat = true;
    while(flat && x - l > 1){
        cout << "examine " << x - l - 1 << " " << y << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            l++;
        }
    }
    flat = true;
    while(flat && y + u < N){
        cout << "examine " << x << " " << y + u + 1 << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            u ++;
        }
    }
    flat = true;
    while(flat && y - d > 1){
        cout << "examine " << x << " " << y - d - 1 << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            d ++ ;
        }
    }
    int midx = (2 * x + r - l) / 2, midy = (2 * y + u - d) / 2;
    int s = r + l + 1;
    int cl = 0, cr = 0, cu = 0, cd = 0;
    flat = true;
    while(flat && midx + 2 * s * (cr + 1) <= N){
        cout << "examine " << midx + 2 * s * (cr + 1) << " " << midy  << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            cr++ ;
        }
    }
    flat = true;
    while(flat && midx - 2 * s * (cl + 1) >= 1){
        cout << "examine " << midx - 2 * s * (cl + 1) << " " << midy  << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            cl++ ;
        }
    }
    flat = true;
    while(flat && midy + 2 * s * (cu + 1) <= N){
        cout << "examine " << midx  << " " << midy + 2 * s * (cu + 1) << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            cu++ ;
        }
    }
    while(flat && midy - 2 * s * (cd + 1) >= 1){
        cout << "examine " << midx  << " " << midy - 2 * s * (cd + 1) << endl;
        string ans;
        cin >> ans;
        if(ans != "true"){
            flat = false;
        }
        else{
            cd++;
        }
    }
    if(cl + cr == 2){
        cout << "solution ";
        if(cl == cr){
            cout << midx << " ";
        }
        if(cl == 0){
            cout << midx + s * 2  << " ";
        }
        if(cl == 2){
            cout << midx - s * 2 << " ";
        }
        if(cu == cd){
            cout << midy << " ";
        }
        if(cd == 0){
            cout << midy + s * 2  << " ";
        }
        if(cd == 2){
            cout << midy - s * 2 << " ";
        }
        cout << endl;
    }
    else{
        cout << "solution ";
        if(cl == 0){
            cout << midx + s << " ";
        }
        if(cl == 1){
            cout << midx - s << " ";
        }
        if(cu == 0){
            cout << midy - s << " ";
        }
        if(cu == 1){
            cout << midy + s << " ";
        }
        cout << endl;

    }
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10