제출 #555928

#제출 시각아이디문제언어결과실행 시간메모리
555928rainboy기억 압축 (JOI15_memory)C11
0 / 100
2201 ms283960 KiB
#include "Memory_lib.h" #define N 101 int min(int a, int b) { return a < b ? a : b; } int code(char c) { if (c == '<') return 0; if (c == '>') return 1; if (c == '[') return 2; return 3; } int Memory(int n, int x) { int i, c, c_, d_, d, a, a_; if (x == 0) return ((0 * N + 0) * N + 0) * 4 + 1; c_ = x / 4 / N / N, i = x / 4 / N % N, d_ = x / 4 % N, a_ = x % 4; if (c_ >= N || i >= n) return -1; a = code(Get(i + 1)), d = d_ + ((a & 1) == 0 ? 1 : -1); if (d < 0) return -1; c = min(d_, d), d_ = d; if (c == c_) { if ((a_ & 1) != 0 && (a & 1) != 0 || (a_ & 1) == 0 && (a ^ a_) != 1) return -1; a_ = a; } if (i + 1 < n) return ((c_ * N + (i + 1)) * N + d_) * 4 + a_; else { if (d != 0 || (a_ & 1) == 0) return -1; if (c_ + 1 == N) return -2; return (((c_ + 1) * N + 0) * N + 0) * 4 + 1; } }

컴파일 시 표준 에러 (stderr) 메시지

memory.c: In function 'Memory':
memory.c:30:21: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   30 |   if ((a_ & 1) != 0 && (a & 1) != 0 || (a_ & 1) == 0 && (a ^ a_) != 1)
      |       ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
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