제출 #198710

#제출 시각아이디문제언어결과실행 시간메모리
198710NeklixxPIN (CEOI10_pin)C++14
30 / 100
71 ms9064 KiB
#include <bits/stdc++.h> #define pb push_back #define mp make_pair #define F first #define S second #define all(v) v.begin(), v.end() #define sh cin.tie(0); cin.sync_with_stdio(0); cout.tie(0); #define FILE freopen("test.in", "r", stdin); #define vprint(v) for (int ii = 0; ii < v.size(); ii++){cout << v[ii] << " ";} #define debugv(v) if (v.size() != 0) {cout << "[ "; for (int __ = 0; __ < (int)(v.size()) - 1; __++){cout << v[__] << ", ";} cout << v[(int)(v.size()) - 1] << " ]" << endl;} else {cout << "[]" << endl;} #define debug cout << "-----------------------------------------------" << endl; #define print1(a) cout << "{ " << a << " }" << endl; #define print2(a, b) cout << "{ " << a << ", " << b << " }" << endl; #define print3(a, b, c) cout << "{ " << a << ", " << b << ", " << c << " }" << endl; #define print4(a, b, c, d) cout << "{ " << a << ", " << b << ", " << c << ", " << d << " }" << endl; using namespace std; #define int long long const int INF = 1e9 + 228; const int MAXN = 1e3 + 28; map<string, int> mapa[MAXN]; string to2(int x) { string res = ""; while (x > 0) { res += (x % 2); x /= 2; } char zero = 0; while (res.size() < 4) { res += zero; } return res; } int n; vector<string> v; signed main() { #ifdef LOCAL FILE; #endif sh; int d; cin >> n >> d; for (int i = 0; i < n; i++) { string s; cin >> s; v.pb(s); } int ans = 0; for (int mask = 0; mask < (1 << 4); mask++) { string now = to2(mask); int sm = 0; for (int i = 0; i < now.size(); i++) { sm += now[i]; } if (sm != 4 - d) continue; for (int i = 0; i < n; i++) { string t = ""; for (int j = 0; j < now.size(); j++) { if (now[j] == 0) continue; t += v[i][j]; } mapa[mask][t]++; } for (auto to : mapa[mask]) { ans += ((to.S * (to.S - 1)) / 2); } } cout << ans << endl; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

pin.cpp: In function 'int main()':
pin.cpp:54:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 0; i < now.size(); i++) {
                   ~~^~~~~~~~~~~~
pin.cpp:61:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int j = 0; j < now.size(); j++) {
                    ~~^~~~~~~~~~~~
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