View Code of Problem 43

#include<stdio.h>
int main(){
  char c[90];
  gets(c);
  int i,j=0;
  for(i=0;i<90;i++){
    if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){
          c[j]=c[i];
    	  j++;
    }
  }
  puts(c);
  return 0;
}
/*
Main.c: In function 'main':
Main.c:4:3: warning: 'gets' is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations]
   gets(c);
   ^
Main.c:7:14: error: 'a' undeclared (first use in this function)
     if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){
              ^
Main.c:7:14: note: each undeclared identifier is reported only once for each function it appears in
Main.c:7:23: error: 'z' undeclared (first use in this function)
     if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){
                       ^
Main.c:7:32: error: 'A' undeclared (first use in this function)
     if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){
                                ^
Main.c:7:41: error: 'Z' undeclared (first use in this function)
     if(c[i]>=a&&c[i]<=z||c[i]>=A&&c[i]<=Z){
                                         ^
*/

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