Submission #243715

#	Time	Username	Problem	Language	Result	Execution time	Memory
243715		kingfran1907	Nizovi (COI14_nizovi)	C++14	100 / 100	157 ms	384 KiB

nizovi

#include <bits/stdc++.h>

using namespace std;
const int maxn = 1e5+10;

int a, b;

int cp(int a, int b) {
    printf("cmp %d %d\n", a, b);
    fflush(stdout);

    int x;
    scanf("%d", &x);
    return x;
}

void rev(int a, int b) {
    printf("reverse %d %d\n", a, b);
    fflush(stdout);
}

int main() {
    scanf("%d%d", &a, &b);

    int ptr = 0;
    for (int i = 1; i <= a; i++) {
        int lo = a + ptr;
        int hi = a + b;

        while (lo < hi) {
            int mid = (lo + hi + 1) / 2;
            if (cp(i + ptr, mid) > 0) lo = mid;
            else hi = mid - 1;
        }

        if (lo == a + ptr) continue;
        rev(i + ptr, lo);
        rev(i + ptr, lo - (a - i + 1));
        rev(lo - (a - i), lo);
        ptr += (lo - (a - i + 1)) - (i + ptr) + 1;
    }
    printf("end\n");
    fflush(stdout);
    return 0;
}

Compilation message (stderr)

nizovi.cpp: In function 'int cp(int, int)':
nizovi.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &x);
     ~~~~~^~~~~~~~~~
nizovi.cpp: In function 'int main()':
nizovi.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &a, &b);
     ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100