scan string in c code example

Example 1: scanf in c

#include 

int main () {
   scanf("%s", str);
   printf("%s"str);
   scanf("%d", int);
   printf("%d"int);
   return(0);
}

Example 2: how to scan in c

scanf("%d",&int);

Example 3: read string c

char name[20];
scanf("%s", name);

Example 4: string in c

#include 

int main() {
  char *str1 = strdup("Hello");
  char *str2 = malloc(sizeof(char) * (strlen(str1) + 1));
  
  for (int i = 0; i < strlen(str1); ++i)
    str2[i] = str1[i];
  str2[strlen(str1)] = '\0'; // very important, the string stop to print
  printf("%s --> %s\n", str1, str2);
}