Järjestys

input/code.cpp: In function 'int main(int, char**)':
input/code.cpp:32:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%" SCNu32, &n);
                       ^
input/code.cpp:40:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%" SCNu32, arr + i);
                             ^

#include <stdio.h>
#include <stdint.h>
#define __STDC_FORMAT_MACROS
#include <inttypes.h>
#include <stdlib.h>
#include <math.h>

void flip(uint32_t *arr, uint32_t n) {
	uint32_t i;
	uint32_t temp;
	for (i = 0; i < ceil(n / 2.0); i++) {
		temp = arr[i];
		arr[i] = arr[n - 1 - i];
		arr[n - 1 - i] = temp;
	}
}

void print_arr(uint32_t *arr, uint32_t n) {
	uint32_t i;
	for (i = 0; i < n; i++) {
		printf("%" PRIu32 " ", arr[i]);
	}
	printf("\n");
}

int main(int argc, char *argv[]) {
	uint32_t n;
	uint32_t *arr;
	uint32_t move_n;
	uint32_t *move_arr;

	scanf("%" SCNu32, &n);
	arr = (uint32_t *) calloc(n, sizeof(uint32_t));

	move_n = 0;
	move_arr = (uint32_t *) calloc(5 * n, sizeof(uint32_t));

	uint32_t i;
	for (i = 0; i < n; i++) {
		scanf("%" SCNu32, arr + i);
	}

	for (i = 0; i < 5 * n; i++) {
		uint32_t max = 0;
		uint32_t max_i;
		uint32_t j;
		for (j = 0; j < n; j++) {
			if (arr[j] != j + 1 && arr[j] > max) {
				max = arr[j];
				max_i = j;
			}
		}
		if (max == 0)
			break;

		move_arr[move_n++] = max_i + 1;
		flip(arr, max_i + 1);

		move_arr[move_n++] = arr[0];
		flip(arr, arr[0]);
	}

	printf("%" PRIu32 "\n", move_n);
	print_arr(move_arr, move_n);

	free(arr);
	return 0;
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: TIME LIMIT EXCEEDED