Time

#include <stdio.h>
#include <conio.h>
#include <time.h>
int main(){

    int nam;
    int hientai;

    time_t rawtime;
    struct tm timeinfo;
    time(&rawtime);
    localtime_s(&timeinfo, &rawtime);
    hientai = timeinfo.tm_year +1900;


    printf("\nNhap nam sinh: ");
    scanf_s("%d", &nam);

    int tuoi = hientai - nam;
    printf("\nBan sinh nam %d nen nam nay ban %d tuoi", hientai, tuoi);


    _getch();
    return 0;
}