Tanzirul Haque Nayan

#include<stdio.h> int main() {     float a, b, c;     printf("Enter a number: ");     scanf("%f", &a);     printf("Enter another number: ");     scanf("%f", &b);     c = a + b;     printf("%0.2f + %0.2f = %0.2f\n", a, b, c);     c = a - b;     printf("%0.2f - %0.2f = %0.2f\n", a, b, c);     c = a * b;     printf("%0.2f * %0.2f = %0.2f\n", a, b, c);     c = a / b;     printf("%0.2f / %0.2f = %0.2f\n", a, b, c);     return 0; }

#include<stdio.h> int main() {     float a, b, div;     printf("Enter a number: ");     scanf("%f", &a);     printf("Enter another number: ");     scanf("%f", &b);     div = a / b;     printf("%0.2f / %0.2f = %0.2f", a, b, div);     return 0; }

#include<stdio.h> int main() {     int a, b, mul;     printf("Enter a number: ");     scanf("%d", &a);     printf("Enter another number: ");     scanf("%d", &b);     mul = a * b;     printf("%d * %d = %d", a, b, mul);     return 0; }

#include<stdio.h> int main() {     int a, b, sub;     printf("Enter a number: ");     scanf("%d", &a);     printf("Enter another number: ");     scanf("%d", &b);     sub = a - b;     printf("%d - %d = %d", a, b, sub);     return 0; }

#include<stdio.h> int main() {     int a, b, sum;     printf("Enter a number: ");     scanf("%d", &a);     printf("Enter another number: ");     scanf("%d", &b);     sum = a+ b;     printf("Sum of %d and %d is: %d", a, b, sum);     return 0; }

#include<stdio.h> void main(void) {     int a;     printf("Enter a number: ");     scanf("%d", &a);     printf("The number is: %d", a); }

#include <stdio.h> void main( void ) {     printf("*\t*\t*\n"); //\t is used to print tab     printf("**\t**\t**\n");     printf("***\t***\t***\n");     printf("****\t****\t****\n");     printf("*****\t*****\t*****\n"); }