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C program to evaluate infix expression into postfix expression

C programming

#include<stdio.h> #include<conio.h> #include<string.h> #include<ctype.h> #define max 100 char st[max]; int top=-1; void push(char st[],char); char pop(char st[]); void infixtopostfix(char source[],char target[]); int  getpriority(char); int main() { char infix[100],postfix[100]; clrscr(); printf(“\n*******************************”); printf(“\nenter postfix expression\n”); gets(infix); strcpy(postfix,””); infixtopostfix(infix,postfix); printf(“\n the corresponding postfix… Continue Reading

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Swapping two variables without and with using third variable.

C programming

#include<stdio.h> #include<conio.h> void swap1(int,int); void swap2(int,int); void main() { int a,b; clrscr(); printf(“Enter the values for a & b respectively:”); scanf(“%d%d”,&a,&b); swap1(a,b); swap2(a,b); getch(); } void swap1(int a,int b) {int c; printf(“\n Swap using third variable:”); c=a; a=b; b=c; printf(“\n… Continue Reading