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새싹교실/2012/열반/120409


1.




  • 3 1 30 행했

2.

  • 행했.

2.1.



int main()
{
	int N, i, j;
	
	scanf("%d", &N);

	for(i=1; i<=N; i++){
		for(j=1; j<=N; j++){
			printf("*");
		}
		printf("\n");
	}
}

2.2. 7

int main()
{
	int N, counter;
	
	scanf("%d", &N);

	counter=0;
	while(N){
		if(N%10==7){
			counter++;
		}
		N/=10;
	}

	printf("%d\n", counter);
}

2.3. Factorial

int main()
{
	int N, i, result;

	N=-1;
	while(N<0){
		scanf("%d", &N);
	}

	result=1;
	for(i=2; i<=N; i++){
		result*=i;
	}

	printf("%d\n", result);
}

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