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DSA LAB 2.2 .c
48 lines (46 loc) · 1.24 KB
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DSA LAB 2.2 .c
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/* Write a program in c that will reverse all words of a given line using stack as an auxiliary data structure.*/
#include <stdio.h>
#include <string.h>
int main()
{
int cap,top;
int i;
char n[1000];
scanf("%[^\n]s",n); /* taking the input*/
cap = strlen(n);
char a[cap];
n[(strlen(n))]=' ';
top = -1;
for(i=0;i<strlen(n);i++)
{
char ch = n[i];
if(ch!=' ') /* storing the elements*/
{
if(top<cap-1) /*pushing the characters into stack*/
{
a[++top] = ch;
}
else
{
printf("\nStack Overflow"); /* printing overflow after checking condition*/
}
}
else
{
while(top>=0)
{
if(top==-1)
{
printf("\nStack Underflow"); /* printing underflow after checking the condition*/
return -99;
}
else
{
printf("%c",a[top--]); /*printing the characters by popping method*/
}
}
printf(" ");
}
}
return 0;
}