Submission #38140

#	Time	Username	Problem	Language	Result	Execution time	Memory
38140		funcsr	Selling RNA Strands (JOI16_selling_rna)	C++14	10 / 100	1500 ms	22308 KiB

selling_rna

#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <set>
#include <cassert>
#include <algorithm>
#define rep(i,n) for (int i=0; i<(n); i++)
#define all(x) x.begin(), x.end()
#define pb push_back
#define _1 first
#define _2 second
using namespace std;
typedef pair<int, int> P;

string convert(string s) {
  string o = "";
  for (char c : s) {
    if (c == 'A') o += 'a';
    else if (c == 'G') o += 'b';
    else if (c == 'C') o += 'c';
    else if (c == 'U') o += 'd';
    else abort();
  }
  return o;
}
string read() {
  string s;
  cin >> s;
  return convert(s);
}
int N, Q;
string S[100000], Srev[100000];
string Qpre[100000], Qsuf[100000];

bool is_prefix_of(const string &S, const string &T) {
  if (T.size() > S.size()) return false;
  rep(i, T.size()) if (T[i] != S[i]) return false;
  return true;
}

int main() {
  cin >> N >> Q;
  rep(i, N) {
    S[i] = read();
    Srev[i] = string(S[i]);
    reverse(all(Srev[i]));
  }
  rep(i, Q) Qpre[i] = read(), Qsuf[i] = read(), reverse(all(Qsuf[i]));
  rep(i, Q) {
    int s = 0;
    rep(j, N) {
      if (is_prefix_of(S[j], Qpre[i]) && is_prefix_of(Srev[j], Qsuf[i])) s++;
    }
    cout << s << "\n";
  }
  return 0;
}

Compilation message (stderr)

selling_rna.cpp: In function 'bool is_prefix_of(const string&, const string&)':
selling_rna.cpp:8:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i,n) for (int i=0; i<(n); i++)
                                 ^
selling_rna.cpp:38:3: note: in expansion of macro 'rep'
   rep(i, T.size()) if (T[i] != S[i]) return false;
   ^

• Subtask 1: 10 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 40