[Solved] I am finding difficulties to solve an expression [closed]

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Just declare a char variable and assign the value. To assign hex prefix with 0x, for octal use 0 and for decimal just write the number with no prefix.

The decimal ascii value of 'z' is 122.

#include <stdio.h>

int main() {
  char a = 122;
  char b = 0x7a;
  char c = 0172;
  char d = 'z';

  putchar(a);
  putchar(b);
  putchar(c);
  putchar(d);
}

All these char variables have the same value so four zs will be printed.

solved I am finding difficulties to solve an expression [closed]