C++ exercises

shadowem

#include<stdio.h>
#include<math.h>

void one_thousand_square();
void fx();
void multiplication_table();
void factorial();

int main() {
	int n, opcion;
	
	do {
		printf("\n");
		printf("<======= MENU =======>");
		printf("\n");
		printf("1. Calcular cuadrados del 1 al 1000\n");
		printf("2. Calcular tabla de multiplicar\n");
		printf("3. Calcular F(x)\n");
		printf("4. Calcular N! desde 1! hasta 10\n");
		printf("5. Salir\n");
		printf("Introducir opcion (1-5): ");
		scanf("%d", &n);

		switch (n) {
			case 1: 
				one_thousand_square(); 
				break;
			case 2: 
				fx();
				break;
			case 3: 
				multiplication_table();
				break;
			case 4: 
				factorial();
				break;
			case 5: 
				return 0;
		}		 
	} while(opcion != 5);

	
}


void one_thousand_square() {
	int x;
	for (x=1; x <= 100; x++){
		printf("%d :pow= %.f \n", x, pow(x,2));
	}
	printf("\n");
}

void fx() {
	int x, F;
    
    printf("Introduzca X:");
    scanf("%d", &x);
    
    F=((x*x*x)+(x*x)-5);
    
    printf("El F(x)=x^3+x^2-5: %d\n", F);
}

void multiplication_table() {
	int z, x = 0;
	printf("Ingrese el numero de la tabla deseada: ");
	scanf("%d", &z);
	while(x <= 11) {
		x++;
		printf("La tabla elegida es:%d\n", z*x);
	}
}

void factorial() {
	int N1=1;
	int N2=2*1;
	int N3=3*2*1;
	int N4=4*3*2*1;
	int N5=5*4*3*2*1;
	int N6=6*5*4*3*2*1;
	int N7=7*6*5*4*3*2*1;
	int N8=8*6*5*4*3*2*1;
	int N9=9*8*7*6*5*4*3*2*1;
	int N10=10*9*8*7*6*5*4*3*2*1;
	
	printf("\n1!=%d\n2!=%d\n3!=%d\n4!=%d\n5!=%d\n6!=%d\n7!=%d\n8!=%d\n9!=%d\n10!=%d\n",N1,N2,N3,N4,N5,N6,N7,N8,N9,N10);
}