Submission #59360260

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Source Code Expand

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>

static void swap(int* a, int* b)
{
	int temp;
	temp = *a;
	*a = *b;
	*b = temp;
}

void quick_sort_2(int** a, int get_left, int get_right)
{
	int left = get_left, right = get_right - 1, standard = get_right;
	if (left <= right)
	{
		while (left < right)
		{
			// 基準以下・以上の
			while (a[left][0] <= a[standard][0] && left < right)
			{
				if (a[left][0] == a[standard][0])
				{
					if (a[left][1] < a[standard][1])
					{
						left++;
					}
					else
					{
						break;
					}
				}
				else
				{
					left++;
				}
			}
			while (a[right][0] >= a[standard][0] && left < right)
			{
				if (a[right][0] == a[standard][0])
				{
					if (a[right][1] > a[standard][1])
					{
						right++;
					}
					else
					{
						break;
					}
				}
				else
				{
					right++;
				}
			}
			if (left < right)
			{
				//swap(&a[left], &a[right]);
				swap(&a[left][0], &a[standard][0]);
				swap(&a[left][1], &a[standard][1]);
				left++;
				right--;
			}
		}

		if (a[left][0] < a[standard][0])
		{
			left += 1;
		}
		else if (a[left][0] == a[standard][0])
		{
			if (a[left][1] < a[standard][1])
				left += 1;
		}
		swap(&a[left][0], &a[standard][0]);
		swap(&a[left][1], &a[standard][1]);

		quick_sort_2(a, get_left, left - 1);
		quick_sort_2(a, left + 1, get_right);
	}
}

int main(void) {
	int max_M = 200000;
	int i, j, k;

	int A[4], A_c[4];

	int chack[8][8], count = 0;
	char S[8][8];

	for (i = 0; i < 4; i++)
	{
		A_c[i] = 0;
		scanf("%d", &A[i]);
	}

	for (i = 0; i < 4; i++)
	{
		if (A_c[i] == 0)
		{
			for (j = i + 1; j < 4; j++)
			{
				if (A_c[j] == 0)
				{
					if (A[i] == A[j])
					{
						count++;
						A_c[i] = 1;
						A_c[j] = 1;
						break;
					}
				}
			}
		}

	}

	printf("%d", count);
	return 0;
}

Submission Info

Compile Error

Main.c: In function ‘main’:
Main.c:96:17: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   96 |                 scanf("%d", &A[i]);
      |                 ^~~~~~~~~~~~~~~~~~

Judge Result