68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
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if (strlen(&input) <= state_index)
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{
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int64_t board = 0x3da8e0915f2c4b67;
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int64_t next_board;
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int64_t i = 0;
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uint64_t move;
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while (true)
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{
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uint64_t c = state[i];
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void* allowed_moves = &allowed_moves;
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int32_t shifter = 0x3c;
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do
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{
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if (c == ((board >> shifter) & 0xf))
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{
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uint64_t* moves = allowed_moves;
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do
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{
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move = *moves;
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if (move == 0)
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break;
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moves += 1;
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} while (((move * 0xf) & board) != 0);
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if (move != 0)
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break;
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}
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shifter -= 4;
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allowed_moves += 0x28;
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} while (shifter != 0xfffffffc);
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if (c != ((board >> shifter) & 0xf) || move == 0)
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break;
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int64_t swapper = ((c * move) ^ (c << shifter));
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next_board = (board ^ swapper);
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if (board == swapper)
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break;
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i += 1;
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if (i == 0x36)
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break;
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board = next_board;
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}
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if (next_board == 0x123456789abcdef0)
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{
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puts("Win!");
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FILE file = fopen("flag.txt", &rb);
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if (file != NULL)
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{
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char flag[0x46];
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fread(&flag, 1, 0x46, file);
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fclose(file);
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puts(flag);
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return 0;
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}
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else
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puts("Send your input on the remote se…");
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}
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else
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puts("Nope!");
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break;
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}
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