Created
January 12, 2015 03:18
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birthday-checker.c
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/* Copyright 2015 Simon Sickle <simon@simonsickle.com> | |
* This program is free software: you can redistribute it and/or modify | |
* it under the terms of the GNU General Public License as published by | |
* the Free Software Foundation, either version 3 of the License, or | |
* (at your option) any later version. | |
* | |
* This program is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
* GNU General Public License for more details. | |
* | |
* You should have received a copy of the GNU General Public License | |
* along with this program. If not, see <http://www.gnu.org/licenses/>. | |
*/ | |
#include <stdio.h> | |
int main(void) | |
{ | |
/* Always initalize vars at the top and 0 them out in RAM. */ | |
int dob = 0; | |
int age = 0; | |
int future = 0; | |
/* Ask user for input */ | |
printf("What year were you born? "); | |
scanf("%i", &dob); | |
printf("How old are you? "); | |
scanf("%i", &age); | |
/* If user reports age as current year - dob then theyre telling | |
* the truth. If they report current age - dob - 1 then they | |
* havent had a birthday yet | |
*/ | |
if ((2015 - dob) == age || ((2015 - dob) - 1) == age) { | |
future = (2055 - dob); | |
printf("You're %i now and will be %i in 2055!\n", age, future); | |
} else { | |
printf("You pesky little liar! You can't be %i!\n", age); | |
} | |
/* main returns an int */ | |
return 0; | |
} |
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