unsigned long long int - 64bit integer type

unsigned long long int

printf, scanf 예제코드) - %llu를 사용한다.
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>

int
main ( void )
{
    unsigned long long int ull;
    printf ( "ULLONG_MAX: %llu\n", ULONG_LONG_MAX );
    printf ( "Enter an ull value: " );
    scanf ( "%llu", &ull );
    printf ( "\nThe ull value is: " );
    printf ( "%llu", ull );
    return EXIT_SUCCESS;
}

숫자 상수(literal)로 기술할 때 : 숫자LL (숫자 뒤에 L을 2개 붙인다.)

unsigned long long int 는 %llu
long long int는 %lld

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