#include <stdio.h>
// 課題3 実行結果になるように空欄を埋める
void print_number(int n){
	printf("%-3d", n);
}
 
void print_space(int n){
	int i;
	for(i=0; i<n; i++) printf(" ");
}
 
void print_star(int n){
	int i;
	for(i=0; i<n; i++) printf("*");
}
 
void print_triangle(int n){
	int i;
	for(i=0; i<n; i++){
		print_number(i);
		print_space(n-i);
		print_star(i);
		printf("\n");
	}
}
 
int main(void) {
	print_triangle(5);
 
	return 0;
}

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