結果
問題 | No.880 Yet Another Segment Tree Problem |
ユーザー | tjake |
提出日時 | 2019-09-07 12:24:20 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 5,036 bytes |
コンパイル時間 | 1,185 ms |
コンパイル使用メモリ | 96,624 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-06-26 08:07:28 |
合計ジャッジ時間 | 8,276 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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
5,248 KB |
testcase_01 | AC | 4 ms
5,376 KB |
testcase_02 | AC | 4 ms
5,376 KB |
testcase_03 | AC | 4 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 3 ms
5,376 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 4 ms
5,376 KB |
testcase_10 | AC | 4 ms
5,376 KB |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
ソースコード
#include<iostream> #include<string> #include<vector> #include<queue> #include<stack> #include<map> #include<set> #include<algorithm> #include<functional> #include<cstdio> #include<cstdlib> #include<cmath> #include<cassert> #include<ctime> using namespace std; #define mind(a,b) (a>b?b:a) #define maxd(a,b) (a>b?a:b) #define absd(x) (x<0?-(x):x) #define pow2(x) ((x)*(x)) #define rep(i,n) for(int i=0; i<n; ++i) #define repr(i,n) for(int i=n-1; i>=0; --i) #define repl(i,s,n) for(int i=s; i<=n; ++i) #define replr(i,s,n) for(int i=n; i>=s; --i) #define repf(i,s,n,j) for(int i=s; i<=n; i+=j) #define repe(e,obj) for(auto e : obj) #define SP << " " << #define COL << " : " << #define COM << ", " << #define ARR << " -> " << #define PNT(STR) cout << STR << endl #define POS(X,Y) "(" << X << ", " << Y << ")" #define DEB(A) " (" << #A << ") " << A #define DEBREP(i,n,val) for(int i=0; i<n; ++i) cout << val << " "; cout << endl #define ALL(V) (V).begin(), (V).end() #define INF 1000000007 #define INFLL 1000000000000000007LL #define EPS 1e-9 typedef unsigned int uint; typedef unsigned long ulong; typedef unsigned long long ull; typedef long long ll; typedef long double ld; #define P_TYPE ll typedef pair<P_TYPE, P_TYPE> P; typedef pair<P, P_TYPE> PI; typedef pair<P_TYPE, P> IP; typedef pair<P, P> PP; typedef priority_queue<P, vector<P>, greater<P> > pvqueue; #define N (1 << 10) class SegmentTree { static const ll inf = 1e18; struct Node { ll max_v, min_v; ll lazy, cnt, sum; bool has; void init(ll x) { max_v = min_v = sum = x; cnt = 1; } void init_empty() { max_v = -inf; min_v = inf; sum = cnt = 0; } inline void update_value(ll x) { lazy = x; sum = x * cnt; max_v = min_v = x; has = true; } inline void propagate(Node &left, Node &right) { if(!has) return; left.update_value(lazy); right.update_value(lazy); has = false; } inline void build(Node &left, Node &right) { max_v = max(left.max_v, right.max_v); min_v = min(left.min_v, right.min_v); sum = left.sum + right.sum; cnt = left.cnt + right.cnt; } } nds[2*N]; int n0, n; ll gcd(ll m, ll n) { ll r = m % n; return r ? gcd(n, r) : n; } void _set(ll x, int a, int b, int k, int l, int r) { Node &nd = nds[k]; if(k < n0-1) nd.propagate(nds[2*k+1], nds[2*k+2]); if(b <= l || r <= a) { return; } if(a <= l && r <= b) { nd.update_value(x); return; } _set(x, a, b, 2*k+1, l, (l+r)/2); _set(x, a, b, 2*k+2, (l+r)/2, r); if(k < n0-1) nd.build(nds[2*k+1], nds[2*k+2]); } void _gcd(ll x, int a, int b, int k, int l, int r) { Node &nd = nds[k]; if(k < n0-1) nd.propagate(nds[2*k+1], nds[2*k+2]); if(b <= l || r <= a) { return; } if(a <= l && r <= b && nd.max_v == nd.min_v) { nd.update_value(gcd(x, nd.max_v)); return; } _gcd(x, a, b, 2*k+1, l, (l+r)/2); _gcd(x, a, b, 2*k+2, (l+r)/2, r); if(k < n0-1) nd.build(nds[2*k+1], nds[2*k+2]); } ll _query_sum(int a, int b, int k, int l, int r) { Node &nd = nds[k]; if(k < n0-1) nd.propagate(nds[2*k+1], nds[2*k+2]); if(b <= l || r <= a) { return 0; } if(a <= l && r <= b) { return nd.sum; } ll lv = _query_sum(a, b, 2*k+1, l, (l+r)/2); ll rv = _query_sum(a, b, 2*k+2, (l+r)/2, r); if(k < n0-1) nd.build(nds[2*k+1], nds[2*k+2]); return lv + rv; } ll _query_max(int a, int b, int k, int l, int r) { Node &nd = nds[k]; if(k < n0-1) nd.propagate(nds[2*k+1], nds[2*k+2]); if(b <= l || r <= a) { return -inf; } if(a <= l && r <= b) { return nd.max_v; } ll lv = _query_max(a, b, 2*k+1, l, (l+r)/2); ll rv = _query_max(a, b, 2*k+2, (l+r)/2, r); if(k < n0-1) nd.build(nds[2*k+1], nds[2*k+2]); return max(lv, rv); } public: SegmentTree(int n, ll *a) { n0 = 1; while(n0 < n) n0 <<= 1; for(int i=0; i<n; ++i) nds[i+n0-1].init(a[i]); for(int i=n; i<n0; ++i) nds[i+n0-1].init_empty(); for(int i=0; i<2*n0-1; ++i) nds[i].lazy = 0, nds[i].has = false; for(int i=n0-2; i>=0; --i) { nds[i].build(nds[2*i+1], nds[2*i+2]); } } void set(int l, int r, ll x) { _set(x, l, r, 0, 0, n0); } void gcd(int l, int r, ll x) { _gcd(x, l, r, 0, 0, n0); } ll query_sum(int l, int r) { return _query_sum(l, r, 0, 0, n0); } ll query_max(int l, int r) { return _query_max(l, r, 0, 0, n0); } }; ll a[N]; int main() { int n, q; cin >> n >> q; rep(i, n) cin >> a[i]; SegmentTree st(n, a); while(q--) { int t, l, r; ll x; cin >> t >> l >> r; switch(t) { case 1: cin >> x; st.set(l-1, r, x); break; case 2: cin >> x; st.gcd(l-1, r, x); break; case 3: cout << st.query_max(l-1, r) << endl; break; case 4: cout << st.query_sum(l-1, r) << endl; break; } } return 0; }