Unit 31.7
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#define _CRT_SECURE_NO_WARINGS
#include <stdio.h>
int main()
{
int i,k,num1;
scanf("%d", &num1);
for (i = 1; i <= num1; i++)
{
for(k = 1; k <= (2 * num1 -1); k++)
{
if(num1 > i - k && num1 < i+k )
printf("*");
else
printf("");
}
printf("\n");
}
return 0;
}
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