write-ups-challenges-2022-2023/rigged-dice/rigged-dice.c
2022-11-24 22:59:22 +01:00

73 lines
1.7 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
char ffff[] = {0x49, 0x47, 0x43, 0x54, 0x46, 0x7b, 0x52, 0x00};
void f1() { printf("Let's play a fun game, I'm very good at this!\n"); }
void f2() {
printf("Because I'm such a pro in this game, I'll up the stakes.\n");
}
char llll[] = {0x65, 0x76, 0x33, 0x72, 0x73, 0x65, 0x45, 0x00};
void f3() { printf("If you beat me, I'll give you a flag, how about that?\n"); }
void f4() {
printf("The game is quite simple, type 'roll' to roll the dice.\n");
}
void f5() {
printf(
"Because I upped the stakes, I also win if I roll the same number. Fair "
"game.\n");
}
char aaaa[] = {0x6e, 0x67, 0x31, 0x6e, 0x33, 0x33, 0x72, 0x00};
void f6(int p) { printf("\nYou rolled: %i\n", p); }
void f7(int c) { printf("I rolled: %i\n", c); }
int f9() { return (rand() % 6) + 1; }
char gggg[] = {0x31, 0x6e, 0x67, 0x31, 0x30, 0x31, 0x7d, 0x00};
int f10(int a) { return (rand() % (6 - a + 1)) + a; }
int main(int argc, char const *argv[]) {
f1();
char x = 0x62;
char y = 0x61;
f2();
char z = 0x69;
srand(time(0));
f3();
char input[128];
f4();
char a = 0x74;
f5();
printf("\nRoll the dice!\n");
fgets(input, sizeof(input), stdin);
if (strcmp(input, "roll\n")) {
printf(
"I thought the instructions were simple? Simply type 'roll' to roll "
"the dice!\n");
} else {
int player = f9();
f6(player);
int cpu = f10(player);
f7(cpu);
if (cpu >= player) {
printf("\nAha, I won! I keep on winning!\n");
} else {
printf("\nWow, you actually beat me. Here is, as promised, your flag:\n");
printf("%s", ffff);
printf("%s", llll);
printf("%s", aaaa);
printf("%s", gggg);
}
}
}