Assignment 1:

//Program 1 to calculate simple interest given p,r,t:
#include<stdio.h>
int main()
{
int p= 100;
  int r= 4;
int t= 12;
     
        float simple_interest=(p*r*t)/100;   //since we are dividing by 100 we might get decimal value.
printf("%f",simple_interest);
return 0;
}

logic map:(how to think)
assume three value principle ,rate , year
name each of them as different variables
write the mathematical formula and assign it to a variable
print the variable

Program 2:
#include<stdio.h>
int main()
{
int length=4;
int breadth=15;
        int area;
        area=length*breadth;
printf("%d",area);
}