Submission #645307

#	Time	Username	Problem	Language	Result	Execution time	Memory
645307		mychecksedad	Worm Worries (BOI18_worm)	C++17	0 / 100	1 ms	208 KiB

worm

/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 1e5+10, F = 2147483646, K = 20;



int n, m, k, q;
int query(int x, int y, int z){
    if(x == 0 || x == n + 1) return 0;
    cout << "? " << x << ' ' << y << ' ' << z << endl;
    int a; cin >> a;
    return a;
}

void solve(){
    cin >> n >> m >> k >> q;
    int l = 1, r = n;
    while(l <= r){
        int m = (l + r) >> 1;
        int q = query(m - 1, 1, 1);
        int q1 = query(m, 1, 1);
        int q2 = query(m + 1, 1, 1);
        if(q <= q1 && q1 >= q2){
            cout << "! " << m << " 1 1" << endl;
            return;
        }
        if(q <= q1 && q1 <= q2){
            r = m - 1;
        }else if(q2 >= q1 && q1 >= q){
            l = m + 1;
        }else{
            r = m - 1;
        }
    }
}





int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message (stderr)

worm.cpp: In function 'int main()':
worm.cpp:53:16: warning: unused variable 'aa' [-Wunused-variable]
   53 |     int T = 1, aa;
      |                ^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 22
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 14
• Subtask 6: 0 / 23