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Code for Log-In Form Using HTML and CSS.

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<html> <head> <style> body { margin:0; padding:0; background-color:grey; } #a { width:300px; padding:40px; position: absolute; top:50%; left:50%; transform: translate(-50%,-50%); background:black; text-align: center; color:white; } #a input[type="text"], #a input[type="password"] { border:0; background-color: none; display:block; margin:20px auto; text-align:center; border:2px solid blue; padding:14px 10px; width:200px; outline:none; color:black; border-radius: 24px; transition:0.25s; } #a input[type="text"]:focus,#a input[type="password"]:focus { width:280px; border-color:green; } #a input[type="submit"] { border:0; background-color: none; display:block; margin:20px auto; text-align:center; border:2px solid green; padding:14px 40px; width:200px; outline:none; color:blue; border-radius: 24px; transition:0.25s; cursor: pointer; } #a input[type="submi...
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Check Input String in form xCy where x is string and y is Reverse of x

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#include<stdio.h> #include<conio.h> #include<string.h> void push(int *top,char s[],char x,int max); int pop(int *top,char s[]); void push(int *top,char s[],char x,int max) {   if(*top>=max-1)   {    printf("stack overflow \n");   }   else   {    *top=*top+1;    s[*top]=x;   } } int pop(int * top,char s[]) {   if(*top<=-1)   {    printf("stack underflow\n");    return 1;   }   else   {    int item=s[*top];    *top=*top-1;    return item;   } } void main() {  int *top,max=10,i,flag,len;  char s[10],x[10],a;  *top=-1;  clrscr();  printf("enter string in format xCy:");   // x is string and y is reverse of x.  gets(x);  len=strlen(x);  for(i=0;x[i]!='C';i++)  {    push(top,s,x[i],max);  } ...
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