find first charcater in string c code example

Example 1: c check first character of string

#include <stdio.h>

int main(void){
  char b[5];
  scanf("%s",&c);
  printf("Simple answer %c",b[0:4])
}

Example 2: c check first character of string

// c char str[](single string)
array[0]
// c char str[] (multiple string)
array[0][0]
// c++ std::stirng s;
s[0]