제출 #823894

#제출 시각아이디문제언어결과실행 시간메모리
823894BlagojSplit the Attractions (IOI19_split)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> #include "split.h" #include "grader.cpp" using namespace std; const int N = 1e5 + 5; int tin[N], low[N], timer = 0, mark[N], sz[N], A, B, C, n; bool special[N]; vector<int> g[N], children[N]; bool found = 0; void color1(int cur, int type, int &Left) { if (Left == 0) mark[cur] = 3; else { mark[cur] = type; Left--; } for (auto next : children[cur]) color1(next, type, Left); } void color2(int cur, int type, int &Left) { if (Left == 0) mark[cur] = 3; else { mark[cur] = type; Left--; } for (auto next : g[cur]) if (mark[next] == 0) color2(next, type, Left); } void dfs(int cur) { tin[cur] = low[cur] = ++timer; sz[cur] = 1; for (auto next : g[cur]) { if (tin[next] == 0) { dfs(next); children[cur].push_back(next); sz[cur] += sz[next]; low[cur] = min(low[cur], low[next]); } else low[cur] = min(low[cur], tin[next]); } if (found) return; if (sz[cur] >= A) { int sum = sz[cur]; for (auto next : children[cur]) { if (low[next] < tin[cur] && sum - sz[next] >= A) { sum -= sz[next]; special[next] = 1; } } if (sum >= A && n - sum >= B) { found = 1; mark[cur] = 1; int Left = A - 1; for (auto next : children[cur]) { if (!special[next]) color1(next, 1, Left); } color2(0, 2, B); } else if (sum >= B && n - sum >= A) { found = 1; mark[cur] = 2; int Left = B - 1; for (auto next : children[cur]) { if (!special[next]) color1(next, 2, Left); } color2(0, 1, A); } } } vector<int> find_split(int _n, int a, int b, int c, vector<int> p, vector<int> q) { n = _n; vector<pair<int, int>> srt = {{-1, 0}, {a, 1}, {b, 2}, {c, 3}}; sort(srt.begin(), srt.end()); A = srt[1].first; B = srt[2].first; C = srt[3].first; for (int i = 0; i < p.size(); i++) { g[p[i]].push_back(q[i]); g[q[i]].push_back(p[i]); } dfs(0); vector<int> ans(n); for (int i = 0; i < n; i++) ans[i] = srt[mark[i]].second; return ans; }

컴파일 시 표준 에러 (stderr) 메시지

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:83:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |  for (int i = 0; i < p.size(); i++) {
      |                  ~~^~~~~~~~~~
/usr/bin/ld: /tmp/ccJwQKuY.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccCHg310.o:split.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status