Submission #1321070

#	Time	Username	Problem	Language	Result	Execution time	Memory
1321070		sadix	Souvenirs (IOI25_souvenirs)	C++17	0 / 100	12 ms	332 KiB

souvenirs

#include "souvenirs.h"
#include <utility>
#include <vector>
#include <stdint.h>
#include <algorithm>

void buy_souvenirs(int N, long long P0) {
    for (int i = 1; i < N; i++) {

        long long L = 1, R = P0 - 1;
        long long goodM = -1;

        while (L <= R) {
            long long mid = (L + R) / 2;
            auto res = transaction(mid);

            bool has_i = false;
            bool has_smaller = false;

            for (int t : res.first) {
                if (t == i) has_i = true;
                if (t < i) has_smaller = true;
            }

            if (has_smaller) {
                R = mid - 1;
            } else if (!has_i) {
                L = mid + 1; 
            } else {
                goodM = mid;
                R = mid - 1;
            }
        }

        for (int k = 0; k < i; k++) {
            transaction(goodM);
        }
    }
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 4
• Subtask 2: 0 / 3
• Subtask 3: 0 / 14
• Subtask 4: 0 / 18
• Subtask 5: 0 / 28
• Subtask 6: 0 / 33