제출 #659210

#제출 시각아이디문제언어결과실행 시간메모리
659210Soul234게임 (IOI14_game)C++14
0 / 100
5 ms9172 KiB
#include<bits/stdc++.h> using namespace std; void DBG() { cerr << "]\n"; } template<class H, class... T> void DBG(H h, T... t) { cerr << h; if(sizeof...(t)) cerr << ", "; DBG(t...); } #ifdef LOCAL #define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__) #else #define dbg(...) 0 #endif // LOCAL #define FOR(i,a,b) for(int i = (a) ; i<(b) ; i++) #define F0R(i,a) FOR(i,0,a) #define ROF(i,a,b) for(int i = (b)-1 ; i>=(a) ; i--) #define R0F(i,a) ROF(i,0,a) #define each(e,a) for(auto &e : (a)) #define sz(v) (int)(v).size() #define all(v) (v).begin(),(v).end() #define rall(v) (v).rbegin(),(v).rend() #define pb push_back #define tcT template<class T #define nl "\n" #define fi first #define se second using ll = long long; using vi = vector<int>; using pi = pair<int,int>; using str = string; using db = long double; tcT> using V = vector<T>; tcT> using pqg = priority_queue<T,vector<T>,greater<T>>; void setIO(string NAME = "") { cin.tie(0)->sync_with_stdio(0); if(sz(NAME)) { freopen((NAME + ".inp").c_str(),"r",stdin); freopen((NAME + ".out").c_str(),"w",stdout); } } tcT> bool ckmin(T&a, const T&b) { return b < a ? a=b,1 : 0; } tcT> bool ckmax(T&a, const T&b) { return b > a ? a=b,1 : 0; } const int MOD = 1e9 + 7; const ll INF = 1e18; const int MX = 1505; int N; int cntno[MX][MX]; int sz[MX], rt[MX]; int findRoot(int u) { if(rt[u] == u) return u; return findRoot(rt[u]); } void initialize(int n) { N = n; FOR(i,1,N+1) { rt[i] = i; sz[i] = 1; } memset(cntno, 0, sizeof cntno); } int hasEdge(int u, int v) { u = findRoot(u); v = findRoot(v); if(u == v) return 1; if(cntno[u][v] < sz[u]*sz[v] - 1) { cntno[u][v]++; cntno[v][u]++; return 0; } if(sz[u] < sz[v]) swap(u, v); sz[u] += sz[v]; rt[v] = u; FOR(i,1,N+1) cntno[u][i] += cntno[v][i]; FOR(i,1,N+1) cntno[i][u] += cntno[v][i]; return 1; }

컴파일 시 표준 에러 (stderr) 메시지

game.cpp: In function 'void setIO(std::string)':
game.cpp:40:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |         freopen((NAME + ".inp").c_str(),"r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
game.cpp:41:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         freopen((NAME + ".out").c_str(),"w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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