Submission #592438

#TimeUsernameProblemLanguageResultExecution timeMemory
592438dantoh000기억 압축 (JOI15_memory)C++14
30 / 100
2390 ms284096 KiB
#include "Memory_lib.h" #include <bits/stdc++.h> int Memory(int N, int M) { if (N <= 30){ int idx = M&31; int flag = M>>5&1; int state = M>>6; if (idx > N) return 0; if (idx == N) return state==0?-1:-2; char ch = Get(idx+1); int type = (ch == '<' || ch == '>') ? 0 : 1; int open = (ch == '<' || ch == '[') ? 1 : 0; if (!open){ if (state == 0) return -2; if (flag^(state&1) == type){ state>>=1; } else return -2; } else{ state<<=1; if (state == 0){ state = 1; flag = type^1; } else{ state |= (flag^type); } } M = (state<<6)|(flag<<5)|(idx+1); return M>=4194304?0:M; } else{ int idx = M&127; int ct = M>>7; if (idx > N) return 0; if (idx == N) return (ct==0)?-1:-2; char ch = Get(idx+1); if (ch == '<'){ ct++; } else{ if (ct == 0) return -2; ct--; } M = (ct<<7)|(idx+1); return M>=4194304?0:M; } }

Compilation message (stderr)

memory.cpp: In function 'int Memory(int, int)':
memory.cpp:15:23: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
   15 |    if (flag^(state&1) == type){
      |             ~~~~~~~~~~^~~~~~~
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