結果
問題 | No.728 ギブ and テイク |
ユーザー | たこし |
提出日時 | 2018-09-28 16:59:48 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,676 bytes |
コンパイル時間 | 2,573 ms |
コンパイル使用メモリ | 224,536 KB |
実行使用メモリ | 62,040 KB |
最終ジャッジ日時 | 2024-10-12 05:24:05 |
合計ジャッジ時間 | 30,071 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | 2 ms
13,640 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 3 ms
6,816 KB |
testcase_07 | AC | 3 ms
6,820 KB |
testcase_08 | AC | 4 ms
6,820 KB |
testcase_09 | AC | 3 ms
6,820 KB |
testcase_10 | AC | 3 ms
6,816 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | AC | 1,175 ms
21,356 KB |
testcase_23 | AC | 746 ms
16,272 KB |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | AC | 1,140 ms
20,636 KB |
testcase_27 | TLE | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <cstdio> #include <string> using namespace std; #define INF 100000000 #define YJ 1145141919 #define INF_INT_MAX 2147483647 #define INF_LL_MAX 9223372036854775807 #define EPS 1e-10 #define MOD 1000000007 #define Pi acos(-1) #define LL long long #define ULL unsigned long long #define LD long double class Node { public: Node(long long int lIndex = startLeftIndex, long long int rIndex = endRightIndex, LL v = unitValue) : leftIndex(lIndex), rightIndex(rIndex), value(v) { } Node operator + (const Node& monoid) const { return Node(startLeftIndex, endRightIndex, this->getValue() + monoid.getValue()); } static Node unit() { return Node(unitValue); } void setValue(LL l) { this->value = l; } LL getValue() const { return this->value; } pair<LL, LL> getIndexRange() { return make_pair(leftIndex, rightIndex); } bool isLeafNode() { auto it = getIndexRange(); return it.second - it.first <= 1; } //値の設定 void setValue(long long int index, LL value) { auto indexRange = getIndexRange(); long long int leftIndex = indexRange.first, midIndex = (indexRange.first + indexRange.second)/2, rightIndex = indexRange.second; if(isLeafNode()) { if(leftIndex <= index && index < rightIndex) { setValue(value); } return; } if(!left_child) { left_child = unique_ptr<Node>(new Node(leftIndex, midIndex)); } if(!right_child) { right_child = unique_ptr<Node>(new Node(midIndex, rightIndex)); } if(leftIndex <= index && index < midIndex) { left_child->setValue(index, value); } else { right_child->setValue(index, value); } //戻るときに値を更新していく Node lNode, rNode; lNode.setValue(left_child->getValue()); rNode.setValue(right_child->getValue()); setValue((lNode + rNode).getValue()); } LL query(long long int l, long long int r) { auto indexRange = getIndexRange(); if(l <= indexRange.first && indexRange.second <= r) { return getValue(); } else if(indexRange.second <= l || r <= indexRange.first) { return Node::unit().getValue(); } else { LL ll = Node::unit().getValue(), rr = Node::unit().getValue(); if(left_child) { ll = left_child->query(l, r); } if(right_child) { rr = right_child->query(l, r); } Node lNode, rNode; lNode.setValue(ll); rNode.setValue(rr); return (lNode + rNode).getValue(); } } private: LL value; static const LL unitValue = 0; static const LL startLeftIndex = 0, endRightIndex = 1000000; unique_ptr<Node> left_child, right_child; long long int leftIndex, rightIndex; }; template <class T> class SegmentTree { public: SegmentTree() { root = unique_ptr<Node>(new Node()); } void setValue(long long int index, LL value) { root->setValue(index, value); } LL query(long long int l, long long int r) { return root->query(l, r); } private: unique_ptr<T> root; }; #define int long long const int MAX_N = 300005; int N; class Child { public: int a, l, r; int index; bool operator < (const Child& c) const { return a+r < c.a+c.r; } }children[MAX_N]; int A[MAX_N]; signed main() { unique_ptr<SegmentTree<Node> > segmentTree = unique_ptr<SegmentTree<Node> > (new SegmentTree<Node>()); cin >> N; for(int i = 0; i < N; i++) { cin >> children[i].a; A[i] = children[i].a; } for(int i = 0; i < N; i++) { cin >> children[i].l >> children[i].r; children[i].index = i; } int ans = 0; set<Child> S; for(int i = 0; i < N; i++) { cerr << i << "***" << endl; const Child& child = children[i]; //Sから出す auto it = S.begin(); while(it != S.end()) { const Child& c = *it; if(c.a + c.r < child.a) { cerr << "erase: " << c.index << endl; segmentTree->setValue(c.index, 0); it = S.erase(it); } else { break; } } int l = lower_bound(A, A+i, child.a - child.l) - A; //cerr << child.a - child.l << " " << child.a + child.r + 1 << endl; ans += segmentTree->query(l, i); cerr << ans << endl; //Sに入れる S.insert(child); segmentTree->setValue(i, 1); //cerr << "Segment: " << child.a << endl; } cout << ans << endl; return 0; }