結果
問題 | No.1022 Power Equation |
ユーザー | wk |
提出日時 | 2020-04-15 21:55:11 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 30 ms / 2,000 ms |
コード長 | 4,366 bytes |
コンパイル時間 | 1,750 ms |
コンパイル使用メモリ | 170,160 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-01 19:04:03 |
合計ジャッジ時間 | 2,445 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 3 ms
6,812 KB |
testcase_01 | AC | 10 ms
6,820 KB |
testcase_02 | AC | 13 ms
6,816 KB |
testcase_03 | AC | 19 ms
6,816 KB |
testcase_04 | AC | 29 ms
6,816 KB |
testcase_05 | AC | 29 ms
6,820 KB |
testcase_06 | AC | 30 ms
6,820 KB |
testcase_07 | AC | 30 ms
6,824 KB |
testcase_08 | AC | 27 ms
6,820 KB |
コンパイルメッセージ
main.cpp: In function 'long int getx(long int, long int, long int, long int)': main.cpp:168:1: warning: control reaches end of non-void function [-Wreturn-type] 168 | } | ^
ソースコード
#include <bits/stdc++.h> #define REP(i, n) for(int i = 0; (i) < (n); (i)++) #define INF 5000000000000000 using namespace std; struct Edge{ int to; long weight; Edge(int t, long w) : to(t), weight(w) {} }; long modpow(long a, long n, long mod) { long res = 1; while (n > 0) { if (n & 1) res = res * a % mod; a = a * a % mod; n >>= 1; } return res; } // a^{-1} mod を計算する long modinv(long a, long mod) { return modpow(a, mod - 2, mod); } struct compare1 { bool operator()(const pair<long, long>& value, const long& key) { return (value.first < key); } bool operator()(const long& key, const pair<long, long>& value) { return (key < value.first); } }; struct UnionFind { vector<int> par; vector<int> rank; UnionFind(int n = 1){ init(n); } void init(int n = 1){ par.resize(n); rank.resize(n); REP(i, n) par[i] = i, rank[i] = 0; } int root(int x){ if(par[x] == x) return x; else return par[x] = root(par[x]); } bool issame(int x, int y){ return root(x) == root(y); } bool merge(int x, int y){ x = root(x); y = root(y); if(x == y) return false; if(rank[x] < rank[y]) swap(x, y); if(rank[x] == rank[y]) rank[x]++; par[y] = x; return true; } }; template<class Abel> struct weightedUnionFind{ vector<int> par; vector<int> rank; vector<Abel> diff_weight; weightedUnionFind(int n = 1, Abel SUM_UNITY = 0){ init(n, SUM_UNITY); } void init(int n = 1, Abel SUM_UNITY = 0){ par.resize(n); rank.resize(n); diff_weight.resize(n); REP(i, n) par[i] = i, rank[i] = 0, diff_weight[i] = SUM_UNITY; } int root(int x){ if(par[x] == x) return x; else{ int r = root(par[x]); diff_weight[x] += diff_weight[par[x]]; return par[x] = r; } } Abel weight(int x){ root(x); return diff_weight[x]; } bool issame(int x, int y){ return root(x) == root(y); } bool merge(int x, int y, Abel w){ w += weight(x); w -= weight(y); x = root(x); y = root(y); if(x == y) return false; if(rank[x] < rank[y]) swap(x, y), w = -w; if(rank[x] == rank[y]) rank[x]++; par[y] = x; diff_weight[y] = w; return true; } Abel diff(int x, int y){ return weight(y) - weight(x); } }; using Graph = vector<vector<int>>; using P = pair<int, int>; /* void dijkstra(int s, int V, Graph &G, long* d){ priority_queue<P, vector<P>, greater<P>> pque; fill(d, d + V, INF); d[s] = 0; pque.push(P(0, s)); while(!pque.empty()){ P p = pque.top(); pque.pop(); int now = p.second; if(d[now] < p.first) continue; REP(i, G[now].size()){ Edge e = G[now][i]; if(d[e.to] > d[now] + e.weight){ d[e.to] = d[now] + e.weight; pque.push(P(d[e.to], e.to)); } } } } */ long GCD(long a, long b){ if(b == 0l) return a; if(a < b) return GCD(b, a); else return GCD(b, a%b); } long getx(long x, long N, long left, long right){ //cout << left << " " << right << endl; long center = (right + left) / 2l; long center2 = center + 1l; long temp = 1l, temp2 = 1l; bool flag = true, flag2 = true; for(long i=0;i<x;i++){ if(flag) temp *= center; if(flag2) temp2 *= center2; if(temp > N) flag = false; if(temp2 > N) flag2 = false; } if(flag && !flag2) return center; if(!flag && !flag2 && center == 2) return 0l; if(flag2) return getx(x, N, center, right); if(!flag && !flag2) return getx(x, N, left, center); } int main() { int T; cin >> T; REP(i, T){ long N; cin >> N; long ans = 0; ans += N * N; for(long b = 1l; b <= 30l; b++) for(long d = 1l; d <= 30l; d++){ if(GCD(b, d) == 1l) { long temp = getx(max(b, d), N, 2l, N+1l); if(temp != 0l) ans += (temp - 1l) * (N/max(b, d)); } } cout << ans << endl; } return 0; }