Submission #419099

#	Time	Username	Problem	Language	Result	Execution time	Memory
419099		acm	Marko (COCI15_marko)	C++14	50 / 50	43 ms	1612 KiB

marko

#include <bits/stdc++.h>
#define speed                   \
  ios_base::sync_with_stdio(0); \
  cin.tie(0);                   \
  cout.tie(0);
#define precision     \
  cout.precision(30); \
  cerr.precision(10);
#define ll long long
#define ld long double
#define pll pair<ll, ll>
#define pii pair<int, int>
#define forn(n) for (int i = 1; i <= n; i++)
#define forlr(l, r) for (int i = l; i != r; (l > r ? i-- : i++))
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define mp(x, y) make_pair(x, y)
#define all(x) x.begin(), x.end()
#define pc(x) __builtin_popcount(x)
#define pcll(x) __builtin_popcountll(x)
#define F first
#define S second
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
void ioi(string name) {
  freopen((name + ".in").c_str(), "r", stdin);
  freopen((name + ".out").c_str(), "w", stdout);
}
ll n;
string s;
set<string> e;
vector<char> m[20];
int main() {
  speed;
  precision;
  // code
  m[2] = {'a', 'b', 'c'};
  m[3] = {'d', 'e', 'f'};
  m[4] = {'g', 'h', 'i'};
  m[5] = {'j', 'k', 'l'};
  m[6] = {'m', 'n', 'o'};
  m[7] = {'p', 'q', 'r', 's'};
  m[8] = {'t', 'u', 'v'};
  m[9] = {'w', 'x', 'y', 'z'};
  cin >> n;
  for (int i = 0; i < n; i++) {
    cin >> s;
    e.insert(s);
  }
  cin >> s;
  for (int i = 0; i < sz(s); i++) {
    vector<string> del;
    for (auto x : e)
      if (!binary_search(all(m[s[i] - '0']), x[i])) del.pb(x);
    for (auto x : del) e.erase(x);
  }
  cout << sz(e);
  // endl
#ifndef ONLINE_JUDGE
  cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
  return 0;
}

Compilation message (stderr)

marko.cpp: In function 'void ioi(std::string)':
marko.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |   freopen((name + ".in").c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
marko.cpp:27:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |   freopen((name + ".out").c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50