Explain the output. .....?

Question

#include <stdio.h>

int main() {

float x=0.1;
printf("%d%d%d",sizeof(x),sizeof(0.1),sizeof(0.1f));
return 0;
}

Answer 1

First note: with the current version of SoloLearn compiler, your code does not compile, because sizeof() returns 8 bytes, but %d expects 4 bytes. So replace "%d%d%d" with "%ul%ul%ul"
,
Second note: the size of a float is 4, the size of a double is 8

Said that, the result is 484 because x is declared float (assignment with a double is automatically casted to float); 0.1 is a constant double; 0.1f is a constant float