C program to print size of different data types

#include<stdio.h> #include<conio.h> void main() { clrscr(); printf(“TypettttSize (bytes)”); printf(“nCharacterttt    %d”,sizeof(char)); printf(“nIntegertttt    %d”,sizeof(int)); printf(“nLong intttt    %d”,sizeof(long int)); printf(“nFloattttt    %d”,sizeof(float)); printf(“nDoubletttt    %d”,sizeof(double)); printf(“nLong doublettt    %d”,sizeof(long double)); getch(); }

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C program to perform arithmetic operations using switch case

#include<stdio.h> #include<conio.h> #include<stdlib.h> void main() { int ch; float a,b,res; clrscr(); printf(“Enter two numbers:”); scanf(“%f%f”,&a,&b); printf(“nMenun1.Additionn2.Subtractionn3.Multiplicationn4.Division”); printf(“nEnter your choice:”); scanf(“%d”,&ch); switch(ch) { case 1: res=a+b; break; case 2: res=a-b; break; case 3: res=a*b; break; case 4: res=a/b; break; default: printf(“Wrong choice!!nPress any key…”); getch(); exit(0); } printf(“nResult=%f”,res); getch(); }

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