Submission #16553784

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Source Code Expand

#include <stdio.h>

void    swap(int company[4][50000], int i, int j)
{
        int     temp;
        int     k;

        for (k = 0; k < 4; k++)
        {
                temp = company[k][i];
                company[k][i] = company[k][j];
                company[k][j] = temp;
        }
}


void    quick_sort_company(int company[4][50000], int left, int right)
{
        int     pivot_index;
        int     pivot;
        int     i;
        int     j;

        if (right - left == 1)
                return ;
        pivot_index = (left + right) / 2;
        pivot = company[3][pivot_index];
        swap(company, pivot_index, right - 1);
        i = 0;
        for (j = 0; j < right - 1; j++)
        {
                if (company[3][j] > pivot)
                {
                        swap(company, i, j);
                        i++;
                }
        }
        swap(company, i, right - 1);
        quick_sort_company(company, 0, i);
        quick_sort_company(company, i + 1, right);
}

int             check_condition(int human[3][50000], int company[4][50000], int i, int j)
{
        int k;

        for (k = 0; k < 3; k++)
        {
                if (company[k][j] > human[k][i])
                        return (0);
        }
        return (1);
}

int             main(void)
{
        int     n;
        int     m;
        int     company[4][50000];
        int     human[3][50000];
        int     answer[50000] = {0};
        int     i;
        int     j;

        scanf("%d%d", &n, &m);
        for (i = 0; i < n; i++)
        {
                scanf("%d%d%d%d", &company[0][i], &company[1][i], &company[2][i], &company[3][i]);
        }
        for (i = 0; i < m; i++)
        {
                scanf("%d%d%d", &human[0][i], &human[1][i], &human[2][i]);
        }
        quick_sort_company(company, 0, n);
        for (i = 0; i < m; i++)
        {
                for (j = 0; j < n; j++)
                {
                        if (check_condition(human, company, i, j))
                        {
                                answer[i] = company[3][j];
                                break ;
                        }
                }
        }
        for (i = 0; i < m; i++)
        {
                printf("%d\n", answer[i]);
        }
        return (0);
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:65:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   65 |         scanf("%d%d", &n, &m);
      |         ^~~~~~~~~~~~~~~~~~~~~
./Main.c:68:17: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   68 |                 scanf("%d%d%d%d", &company[0][i], &company[1][i], &company[2][i], &company[3][i]);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./Main.c:72:17: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   72 |                 scanf("%d%d%d", &human[0][i], &human[1][i], &human[2][i]);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Judge Result