Submission #1199321

#	Time	Username	Problem	Language	Result	Execution time	Memory
1199321		rewqew	Worm Worries (BOI18_worm)	C++17	0 / 100	4 ms	9060 KiB

worm

#include <iostream>
#include <vector>

std::vector<long long> dirt(1111000, -1);

int Dirt(int n) {
    if (dirt[n] != -1) {
        return dirt[n];
    }
    std::cout << "? " << n+1 << " 1 1" << std::endl;
    std::cin >> dirt[n];
    return dirt[n]; 
}

int main() {
    long long n, m, k, q;
    std::cin >> n >> m >> k >> q;

    Dirt(0);
    Dirt(n-1);

    int l = 0;
    int r = n-1;
    int mi = (l+r)/2;
    while (l < r) {
        if (Dirt(mi) <= Dirt(r)) {
            l = mi+1;
        }
        else {
            r = mi;
        }
        mi = (l+r)/2;
    }
    std::cout << mi+1;
}

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