zad_brackets

//TRY THIS OUT

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int top = -1;
char s[100];

void balanced_parentheses(){
int i,l;
char exp[100],x,y;
printf("Enter the exp: \n");
scanf("%s",exp);
l = strlen(exp);
for(i = 0;i<l;i++){
if(exp[i]=='(' || exp[i]=='{' || exp[i]=='['){
x = exp[i];
push(exp[i]);
}
else if(exp[i]==')' || exp[i]=='}' || exp[i]==']'){
y = exp[i];
pop(y);
}
}
}

void push(char x){
top++;
s[top] = x;
}

void pop(char y){
if(y==')'){
if(s[top]=='('){
top=top-1;
}
}
else if(y=='}'){
if(s[top]=='{'){
top = top-1;
}
}
else if(y==']'){
if(s[top]=='['){
top = top-1;
}
}
else{
return "\0";
}
}

void Print(){
int i;
if(top==-1){
printf("\nThey are balanced parentheses");
}
else{
printf("\nFALSE! not balanced ones..because\n");

    for(i=0;i<=top;i++){
        if(s[top]=='('){
                printf("You should end with: ')' ");
           }
        else if(s[top]=='{'){
            printf("You should end with: '}' ");
        }
        else if(s[top]=='['){
            printf("You should end with: ']'");
        }
        else{
            printf("INVALID expression here!");
        }
        return;
    }

}
}

int main(){
balanced_parentheses();
Print();
}