제출 #165418

#제출 시각아이디문제언어결과실행 시간메모리
165418gayporn로봇 (IOI13_robots)C++14
컴파일 에러
0 ms0 KiB
//Pye #include <bits/stdc++.h> #define FOR(i, a, b) for(int i = (a); i <= (b); i++) #define FORR(i, a, b) for(int i = (a); i >= (b); i--) #define pair pair <int, int> #define F first #define S second #define maxn 20005 using namespace std; int A, B, T, z, tr[maxn], cnt, s, t, maxflow; pair q[maxn]; struct edge{ int u, v, c, f; }e[2*maxn]; vector <int> a[maxn]; void add(int u, int v, int c){ a[u].push_back(z); e[z++] = {u, v, c, 0}; a[v].push_back(z); e[z++] = {v, u, 0, 0}; } bool BFS(){ memset(tr, 0, sizeof tr); tr[s] = -1; queue <int> q; q.push(s); while (q.size()){ int u = q.front(); q.pop(); for (auto id : a[u]){ int v = e[id].v; if (!tr[v] && e[id].c > e[id].f){ tr[v] = id; q.push(v); if(v == t) return 1; } } } return 0; } void IncFlow(){ int delta = 1e9; int v = t; while (v != s){ int id = tr[v]; delta = min(delta, e[id].c - e[id].f); v = e[id].u; } v = t; while (v != s){ int id = tr[v]; e[id].f += delta; e[id^1].f -= delta; v = e[id].u; } maxflow += delta; } bool check(int mid){ for(int i = 0; i < 2*(A + B); i += 2) e[i].c = mid; for(int i = 0; i < z; i++) e[i].f = 0; maxflow = 0; while(BFS()) IncFlow(); return maxflow == T; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); // ifstream cin("robots.inp"); // ofstream cout("robots.out"); cin >> A >> B >> T; s = 10005; t = s+1; FOR(i, 1, A){ int x; cin >> x; q[++cnt] = {x, 1e9}; add(s, cnt, 0); } FOR(i, 1, B){ int x; cin >> x; q[++cnt] = {1e9, x}; add(s, cnt, 0); } FOR(i, 1, T){ ++cnt; int x, y; cin >> x >> y; FOR(j, 1, A+B) if(q[j].F >= x && q[j].S >= y) add(j, cnt, 1); add(cnt, t, 1); } int l = 0, r = 1e9; while(r - l > 1){ int mid = (l + r) / 2; if(check(mid)) r = mid; else l = mid; } cout << r; }

컴파일 시 표준 에러 (stderr) 메시지

/tmp/cc3EtU7L.o: In function `main':
robots.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccSM5C31.o:grader.c:(.text.startup+0x0): first defined here
/tmp/ccSM5C31.o: In function `main':
grader.c:(.text.startup+0x17e): undefined reference to `putaway'
collect2: error: ld returned 1 exit status