제출 #856463

#제출 시각아이디문제언어결과실행 시간메모리
856463RiverFlowGenetics (BOI18_genetics)C++14
19 / 100
139 ms35296 KiB
#include <bits/stdc++.h> #define nl "\n" #define no "NO" #define yes "YES" #define fi first #define se second #define vec vector #define task "main" #define _mp make_pair #define ii pair<int, int> #define sz(x) (int)x.size() #define all(x) x.begin(), x.end() #define evoid(val) return void(std::cout << val) #define FOR(i, a, b) for(int i = (a); i <= (b); ++i) #define FOD(i, b, a) for(int i = (b); i >= (a); --i) #define unq(x) sort(all(x)); x.resize(unique(all(x)) - x.begin()) using namespace std; template<typename U, typename V> bool maxi(U &a, V b) { if (a < b) { a = b; return 1; } return 0; } template<typename U, typename V> bool mini(U &a, V b) { if (a > b) { a = b; return 1; } return 0; } const int N = (int)4100 + 9; const int mod = (int)1e9 + 7; void prepare(); void main_code(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); if (fopen(task".inp", "r")) { freopen(task".inp", "r", stdin); freopen(task".out", "w", stdout); } const bool MULTITEST = 0; prepare(); int num_test = 1; if (MULTITEST) cin >> num_test; while (num_test--) { main_code(); } } void prepare() {}; string s[N]; int diff(int i, int j) { int res = 0; for(int k = 0; k < sz(s[i]); ++k) res += (s[i][k] != s[j][k]); return res; } bitset<1800> b[N]; int n, m, k; int d[N][N]; void subtask2() { for(int i = 0; i < n; ++i) { string s; cin >> s; for(char &c : s) { if (c == 'A') c = '0'; else c = '1'; } b[i] = bitset<1800>(s); } for(int i = 0; i < n; ++i) { for(int j = i + 1; j < n; ++j) { d[i][j] = (b[i] ^ b[j]).count(); } } for(int i = 0; i < n; ++i) { int c = 0; FOR(j, 0, n - 1) if (j < i) c += d[j][i] == k; else c += d[i][j] == k; if (c == n - 1) evoid(i + 1); } } void main_code() { cin >> n >> m >> k; if (n <= 1800 and m <= 1800) return subtask2(), void(); for(int i = 0; i < n; ++i) cin >> s[i]; if (n <= 100) { FOR(i, 0, n - 1) { int cnt = 0; FOR(j, 0, n - 1) cnt += diff(i, j) == k; if (cnt == n - 1) { evoid(i + 1); } } } } /* Let the river flows naturally */

컴파일 시 표준 에러 (stderr) 메시지

genetics.cpp: In function 'int main()':
genetics.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
genetics.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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