제출 #587638

#제출 시각아이디문제언어결과실행 시간메모리
587638MilosMilutinovicThe Potion of Great Power (CEOI20_potion)C++14
컴파일 에러
0 ms0 KiB
/** * author: wxhtzdy * created: 01.07.2022 22:14:54 **/ #include <bits/stdc++.h> using namespace std; string to_string(string s) { return '"' + s + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(bool b) { return (b ? "true" : "false"); } template <typename A, typename B> string to_string(pair<A, B> p) { return "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; } template <typename A> string to_string(A v) { bool first = true; string res = "{"; for (const auto &x : v) { if (!first) { res += ", "; } first = false; res += to_string(x); } res += "}"; return res; } void debug_out() { cerr << endl; } template <typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << " " << to_string(H); debug_out(T...); } #ifdef LOCAL #define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif const int MAX = 200005; const int MAGIC = 30; int a[MAX], p[MAX], q[MAX]; vector<int> qs[MAX]; vector<set<int>> my[MAX]; void init(int n, int d, int h[]) { for (int i = 0; i < n; i++) { a[i] = h[i]; } } void curseChanges(int u, int a[], int b[]) { for (int i = 0; i < u; i++) { qs[a[i]].push_back(i); qs[b[i]].push_back(i); p[i] = a[i]; q[i] = b[i]; } for (int i = 0; i < MAX; i++) { if (qs[i].empty()) { continue; } set<int> st; for (int j = 0; j < (int) qs[i].size(); j++) { int he = (i ^ p[qs[i][j]] ^ q[qs[i][j]]); if (st.find(he) != st.end()) { st.erase(st.find(he)); } else { st.insert(he); } if (j % MAGIC == 0) { my[i].push_back(st); } } } } int question(int x, int y, int v) { --v; vector<int> xs; vector<int> ys; { int i = lower_bound(qs[x].begin(), qs[x].end(), v + 1) - qs[x].begin(); --i; if (i >= 0) { set<int> st = my[x][i / MAGIC]; for (int j = (i / MAGIC) * MAGIC + 1; j <= i; j++) { int he = (x ^ p[qs[x][j]] ^ q[qs[x][j]]); if (st.find(he) != st.end()) { st.erase(st.find(he)); } else { st.insert(he); } } for (int j : st) { xs.push_back(a[j]); } } sort(xs.begin(), xs.end()); } { int i = lower_bound(qs[y].begin(), qs[y].end(), v + 1) - qs[y].begin(); --i; if (i >= 0) { set<int> st = my[y][i / MAGIC]; for (int j = (i / MAGIC) * MAGIC + 1; j <= i; j++) { int he = (y ^ p[qs[y][j]] ^ q[qs[y][j]]); if (st.find(he) != st.end()) { st.erase(st.find(he)); } else { st.insert(he); } } for (int j : st) { ys.push_back(a[j]); } } sort(ys.begin(), ys.end()); } int ptr = 0; int ans = 1e9; for (int i = 0; i < (int) xs.size(); i++) { while (ptr + 1 < (int) ys.size() && xs[i] > ys[ptr]) { ptr += 1; } for (int j = -1; j <= 0; j++) { int idx = ptr + j; if (idx >= 0 && idx < (int) ys.size()) { ans = min(ans, abs(xs[i] - ys[idx])); } } } return ans; } int main() { ios::sync_with_stdio(false); cin.tie(0); int H[6]; H[0] = 2; H[1] = 42; H[2] = 1000; H[3] = 54; H[4] = 68; H[5] = 234; init(6, 5, H); int A[11], B[11]; A[0] = 0; A[1] = 2; A[2] = 3; A[3] = 3; A[4] = 3; A[5] = 1; A[6] = 5; A[7] = 0; A[8] = 3; A[9] = 1; A[10] = 3; B[0] = 1; B[1] = 0; B[2] = 4; B[3] = 5; B[4] = 5; B[5] = 3; B[6] = 3; B[7] = 5; B[8] = 0; B[9] = 3; B[10] = 5; curseChanges(11, A, B); cout << question(0, 3, 4) << '\n'; cout << question(3, 0, 8) << '\n'; cout << question(0, 5, 5) << '\n'; cout << question(3, 0, 11) << '\n'; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccRsakZ0.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccenA5h1.o:potion.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status