37 lines
677 B
C
37 lines
677 B
C
#include <stdio.h>
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#include <stdlib.h>
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char *__rdfl() {
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FILE *fl = fopen("flag.txt", "r");
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fseek(fl, 0, SEEK_END);
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unsigned long fs = (unsigned long)ftell(fl);
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fseek(fl, 0, SEEK_SET);
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char *buf = malloc(fs);
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fread(buf, 1, fs, fl);
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return buf;
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}
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int main() {
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printf("Input? ");
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int input;
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scanf("%d", &input);
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int f1 = 1;
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int f2 = 1;
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for(int step = 1; step <= 5; step++) {
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f1 = f1 * 2;
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if(step % 3 != 0) f2 = f2 * 3;
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}
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int code = input - f1 * f2;
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if(code == 0xC0DE) {
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char *__fl = __rdfl();
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printf("%s\n", __fl);
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free(__fl);
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}
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else {
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return -1;
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}
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}
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