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27 lines
596 B

#include <bits/stdc++.h>
using namespace std;
int main() {
int i, j;
int line = 0;
scanf("%d", &line);
line--;
for (i = 0; i <= 2 * line; i++) {
for (j = 0; j <= line; j++) {
if (i <= line) {
if (i + j >= line)
printf("* ");
else
printf(" ");
} else {
if (i - j <= line)
printf("* ");
else
printf(" ");
}
}
printf("\n");
}
return 0;
}