Submission #68740

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
68740	2018-08-18 10:16:36	tmwilliamlin168	Snake Escaping (JOI18_snake_escaping)	C++14	22 / 100	443 ms	66560 KiB

snake_escaping

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#include <bits/stdc++.h>
using namespace std;
const int mxL=20, mxQ=1e6;
int l, q, dp[2][1<<mxL];
string s;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  
  cin >> l >> q >> s;
  for(int j=0; j<2; ++j) {
    for(int i=0; i<1<<l; ++i)
      dp[j][i]=s[i]-'0';
    for(int k=0; k<l; ++k)
      for(int i=0; i<1<<l; ++i)
        if(i>>k&1^j)
          dp[j][i]+=dp[j][i^1<<k];
  }
  while(q--) {
    string t;
    cin >> t;
    int na=0, nb=0, nc=0, ma=0, mb=0, mc=0, ans=0;
    for(int i=0; i<l; ++i) {
      if(t[i]=='0') {
        ++na;
        ma|=1<<(l-1-i);
      } else if(t[i]=='1') {
        ++nb;
 
 
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Compilation message (stderr)

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:18:12: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
     if(i>>k&1^j)
        ~~~~^~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 10 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25