제출 #65675

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
65675		forestryks	Marko (COCI15_marko)	C++14	50 / 50	6 ms	2804 KiB

marko

///////////////////////////////////////////////////////////////////////////////////////////////
#include <bits/stdc++.h>
using namespace std;

// #define int long long

#define FAST_IO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define FILE_IO(x) freopen((string(x) + ".in").c_str(), "r", stdin); freopen((string(x) + ".out").c_str(), "w", stdout)
#define f first
#define s second
#define x1 x1qwer
#define y1 y1qwer
#define right right123
#define left left123
#define foreach(it, v) for (auto it : v)
#define rep(it, n) for (int it = 0; it < n; ++it)
#define forin(it, l, r) for (int it = l; it < r; ++it)
#define all(x) x.begin(), x.end()

typedef long long ll;
typedef unsigned long long ull;
typedef double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const double DINF = numeric_limits<double>::infinity();
const ll MOD = 1e9 + 7;
const double EPS = 1e-7;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
mt19937 mmtw_(MOD);
uniform_int_distribution<ll> rd_;
ll randomll() { return rd_(mmtw_);}
ll rnd(ll x, ll y) { return rd_(mmtw_) % (y - x + 1) + x; }
template <class T> T fact(T n) { if (n == 1) return 1; return n * fact(n - 1); }
////////////////////////////////////////////////////////////////////////////////////////////////

string key[] = {"", "abc", "def", "ghi", "jkl", "mno", "pqrs", "tuv", "wxyz"};
int id[256];

int n;
map<string, int> cnt;

int main() {
    FAST_IO;

    for (int i = 0; i < 9; ++i) {
        for (int j = 0; j < key[i].size(); ++j) {
            id[key[i][j]] = '1' + i;
        }
    }

    cin >> n;
    rep(i, n) {
        string s;
        cin >> s;

        for (auto &it : s) {
            it = id[it];
        }


        cnt[s]++;
    }

    string s;
    cin >> s;
    cout << cnt[s] << endl;
}

컴파일 시 표준 에러 (stderr) 메시지

marko.cpp: In function 'int main()':
marko.cpp:46:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < key[i].size(); ++j) {
                         ~~^~~~~~~~~~~~~~~
marko.cpp:47:25: warning: array subscript has type 'char' [-Wchar-subscripts]
             id[key[i][j]] = '1' + i;
                         ^
marko.cpp:57:23: warning: array subscript has type 'char' [-Wchar-subscripts]
             it = id[it];
                       ^

• Subtask 1: 50 / 50