📄 pku2007.cpp
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#include <stdio.h>
#include <math.h>
#include <stdlib.h>
typedef struct
{
int x;
int y;
} Point;
int n;
Point p[50];
int cmp(const void *a, const void *b)
{
Point *aa = (Point *)a;
Point *bb = (Point *)b;
return aa->y * bb->x - aa->x * bb->y;
}
int main()
{
int x, y, i, j;
i = 0;
// freopen("2007.in", "r", stdin);
scanf("%d%d", &x, &y);
while (scanf("%d%d", &x, &y) != -1)
{
p[i].x = x;
p[i].y = y;
i++;
}
n = i;
qsort(p, n, sizeof(p[0]), cmp);
i = 0;
printf("(0,0)\n");
for (i = 0; i < n; i++)
{
printf("(%d,%d)\n", p[i].x, p[i].y);
}
return 0;
}
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