結果
| 問題 |
No.789 範囲の合計
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-08-08 21:18:28 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 241 ms / 1,000 ms |
| コード長 | 3,325 bytes |
| コンパイル時間 | 2,664 ms |
| コンパイル使用メモリ | 206,020 KB |
| 最終ジャッジ日時 | 2025-01-07 11:01:38 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 |
ソースコード
#include <bits/stdc++.h>
#define LLI long long int
#define FOR(v, a, b) for(LLI v = (a); v < (b); ++v)
#define FORE(v, a, b) for(LLI v = (a); v <= (b); ++v)
#define REP(v, n) FOR(v, 0, n)
#define REPE(v, n) FORE(v, 0, n)
#define REV(v, a, b) for(LLI v = (a); v >= (b); --v)
#define ALL(x) (x).begin(), (x).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define ITR(it, c) for(auto it = (c).begin(); it != (c).end(); ++it)
#define RITR(it, c) for(auto it = (c).rbegin(); it != (c).rend(); ++it)
#define EXIST(c,x) ((c).find(x) != (c).end())
#define fst first
#define snd second
#define popcount __builtin_popcount
#define UNIQ(v) (v).erase(unique(ALL(v)), (v).end())
#define bit(i) (1LL<<(i))
#ifdef DEBUG
#include <misc/C++/Debug.cpp>
#else
#define dump(...) ((void)0)
#endif
#define gcd __gcd
using namespace std;
template <class T> constexpr T lcm(T m, T n){return m/gcd(m,n)*n;}
template <typename I> void join(ostream &ost, I s, I t, string d=" "){for(auto i=s; i!=t; ++i){if(i!=s)ost<<d; ost<<*i;}ost<<endl;}
template <typename T> istream& operator>>(istream &is, vector<T> &v){for(auto &a : v) is >> a; return is;}
template <typename T, typename U> bool chmin(T &a, const U &b){return (a>b ? a=b, true : false);}
template <typename T, typename U> bool chmax(T &a, const U &b){return (a<b ? a=b, true : false);}
template <typename T, size_t N, typename U> void fill_array(T (&a)[N], const U &v){fill((U*)a, (U*)(a+N), v);}
template <typename M> class DynamicSegmentTree{
using Op = function<M(M,M)>;
class Node{
public:
M val;
Node *left = nullptr, *right = nullptr;
Node(const M &val): val(val) {}
};
Node *root = nullptr;
LLI size;
M zero;
Op op;
unordered_map<LLI, Node*> umap;
Node* _update(Node *node, LLI l, LLI r, LLI pos, const M &val){
LLI m = (l+r)/2;
if(r-l == 1){
if(node) node->val = op(node->val, val);
else node = new Node(val);
umap[pos] = node;
}else{
if(!node) node = new Node(val);
if(pos<m) node->left = _update(node->left, l, m, pos, val);
else node->right = _update(node->right, m, r, pos, val);
node->val = op((node->left ? (node->left)->val : zero), (node->right ? (node->right)->val : zero));
}
return node;
}
M _query(Node* node, LLI l, LLI r, LLI x, LLI y){
if(!node) return zero;
LLI m = (l+r)/2;
if(x <= l && r <= y) return node ? node->val : zero;
if(r < x || y < l) return zero;
return op(_query(node->left, l, m, x, y), _query(node->right, m, r, x, y));
}
public:
DynamicSegmentTree(LLI n, const M &zero, const Op &op): size(pow(2,ceil(log2(n)))), zero(zero), op(op){ // [0,n)
root = new Node(zero);
}
void update(LLI i, const M &x){
_update(root, 0, size, i, x);
}
M get(LLI x, LLI y){
return _query(root, 0, size, x, y);
}
M operator[](LLI i) const{
if(umap.find(i) != umap.end()) return umap[i]->val;
else return zero;
}
};
int main(){
cin.tie(0);
ios::sync_with_stdio(false);
int n;
while(cin >> n){
DynamicSegmentTree<LLI> seg(1000000001, 0, [](LLI a, LLI b){return a+b;});
LLI ans = 0;
REP(i,n){
int q,x,y; cin >> q >> x >> y;
if(q == 0){
seg.update(x,y);
}else{
ans += seg.get(x,y+1);
}
}
cout << ans << endl;
}
return 0;
}