답안 #270694

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
270694	2020-08-17T23:52:01 Z	doowey	Progression (NOI20_progression)	C++14	100 / 100	1181 ms	71032 KB

Progression

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = (int)3e5 + 10;
const ll inf = (ll)1e12;
const ll F = -inf;

bool debug;

struct Node{
    ll sigma;
    ll set_l;
    ll add_l;
    int siz;
    ll lef_val;
    ll rig_val;
    int answer;
    int ans_pref;
    int ans_suff;
};

Node T[N * 4 + 512];

void push(int node, int cl, int cr){
    if(T[node].set_l != (ll)1e18){
        T[node].set_l += T[node].add_l;
        T[node].sigma = T[node].siz * 1ll * T[node].set_l;
        T[node].lef_val = T[node].set_l;
        T[node].rig_val = T[node].set_l;
        T[node].answer = T[node].siz;
        T[node].ans_pref = T[node].siz;
        T[node].ans_suff = T[node].siz;
        if(cl != cr){
            T[node * 2].set_l = T[node].set_l;
            T[node * 2].add_l = 0;
        }
        if(cl != cr){
            T[node * 2 + 1].set_l = T[node].set_l;
            T[node * 2 + 1].add_l = 0;
        }
        T[node].set_l = (ll)1e18;
        T[node].add_l = 0;
    }
    else if(T[node].add_l != 0){
        T[node].sigma += T[node].siz * 1ll * T[node].add_l;
        T[node].lef_val += T[node].add_l;
        T[node].rig_val += T[node].add_l;
        if(cl != cr)T[node * 2].add_l += T[node].add_l;
        if(cl != cr)T[node * 2 + 1].add_l += T[node].add_l;
        T[node].add_l = 0ll;
    }
}

Node unite(Node A, Node B){
    Node ret;
    ret.sigma = A.sigma + B.sigma;
    ret.add_l = 0ll;
    ret.set_l = (ll)1e18;
    ret.siz = A.siz + B.siz;
    ret.answer = max(A.answer, B.answer);
    ret.lef_val = A.lef_val;
    ret.rig_val = B.rig_val;
    ret.ans_pref = A.ans_pref;
    ret.ans_suff = B.ans_suff;
    if(A.rig_val == B.lef_val){
        ret.answer = max(ret.answer, A.ans_suff + B.ans_pref);
        if(A.ans_pref == A.siz) ret.ans_pref += B.ans_pref;
        if(B.ans_suff == B.siz) ret.ans_suff += A.ans_suff;
    }
    return ret;
}

void upd1(int node, int cl, int cr, int tl, int tr, ll x){
    push(node, cl, cr);
    if(cr < tl || cl > tr)
        return;
    if(cl >= tl && cr <= tr){
        T[node].set_l = x;
        push(node, cl, cr);
        return;
    }
    int mid = (cl + cr) / 2;
    upd1(node * 2, cl, mid, tl, tr, x);
    upd1(node * 2 + 1, mid + 1, cr, tl, tr, x);
    T[node] = unite(T[node * 2], T[node * 2 + 1]);
}

void upd2(int node, int cl, int cr, int tl, int tr, ll x){
    push(node, cl, cr);
    if(cr < tl || cl > tr)
        return;
    if(cl >= tl && cr <= tr){
        T[node].add_l = x;
        push(node, cl, cr);
        return;
    }
    int mid = (cl + cr) / 2;
    upd2(node * 2, cl, mid, tl, tr, x);
    upd2(node * 2 + 1, mid + 1, cr, tl, tr, x);
    T[node] = unite(T[node * 2], T[node * 2 + 1]);
}

ll get_sum(int node, int cl, int cr, int tl, int tr){
    push(node, cl, cr);
    if(cr < tl || cl > tr)
        return 0ll;
    if(cl >= tl && cr <= tr){
        return T[node].sigma;
    }
    int mid = (cl + cr) / 2;
    return get_sum(node * 2, cl, mid, tl, tr) + get_sum(node * 2 + 1, mid + 1, cr, tl, tr);
}

Node cur;
bool has;

void query(int node, int cl, int cr, int tl, int tr){
    push(node, cl, cr);
    if(tl > tr) return;
    if(cr < tl) return;
    if(cl > tr) return;
    if(cl >= tl && cr <= tr){
        if(!has) {
            cur = T[node];
            has=true;
        }
        else{
            cur = unite(cur, T[node]);
        }
        return;
    }
    int mid = (cl + cr) / 2;
    query(node * 2, cl, mid, tl, tr);
    query(node * 2 + 1, mid + 1, cr, tl, tr);
}

int n;
ll A[N];

void build(int node, int cl, int cr){
    if(cl == cr){
        T[node] = {A[cl], (ll)1e18, 0ll,cr-cl+1,A[cl],A[cl],1,1,1};
        return;
    }
    int mid = (cl + cr) / 2;
    build(node * 2, cl, mid);
    build(node * 2 + 1, mid + 1, cr);
    T[node] = unite(T[node * 2], T[node * 2 + 1]);
}

int main(){
    fastIO;
    int q;
    cin >> n >> q;
    A[0] = F;
    for(int i = 1; i <= n; i ++ ){
        cin >> A[i];
    }
    for(int i = n; i >= 1; i -- ){
        A[i] = A[i] - A[i - 1];
    }
    build(1, 0, n);
    int type;
    ll l, r, s, x;
    ll fb, fs;
    for(int i = 0 ; i < q; i ++ ){
        cin >> type;
        if(type == 1){
            cin >> l >> r >> s >> x;
            if(l + 1 <= r)upd2(1, 0, n, l + 1, r, x);
            upd2(1, 0, n, l, l, s);
            if(r + 1 <= n)
                upd2(1, 0, n, r + 1, r + 1, -(s + (r - l) * 1ll * x));
        }
        else if(type == 2){
            cin >> l >> r >> s >> x;
            fb = get_sum(1, 0, n, 0, l - 1);
            if(r < n) fs = get_sum(1, 0, n, 0, r + 1);
            upd1(1, 0, n, l, l, s - fb);
            if(l + 1 <= r)upd1(1, 0, n, l + 1, r, x);
            if(r < n) upd1(1, 0, n, r + 1, r + 1, fs-(s+(r-l)*x));
        }
        else{
            cin >> l >> r;
            if(l == r){
                cout << 1 << "\n";
            }
            else{
                has=false;
                query(1, 0, n, l+1, r);
                cout << cur.answer + 1 << "\n";
            }
        }
    }
    return 0;
}

Compilation message

Progression.cpp: In function 'int main()':
Progression.cpp:190:27: warning: 'fs' may be used uninitialized in this function [-Wmaybe-uninitialized]
  190 |             if(r < n) upd1(1, 0, n, r + 1, r + 1, fs-(s+(r-l)*x));
      |                       ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	416 ms	69112 KB	Output is correct
2	Correct	147 ms	632 KB	Output is correct
3	Correct	150 ms	724 KB	Output is correct
4	Correct	145 ms	720 KB	Output is correct
5	Correct	142 ms	760 KB	Output is correct
6	Correct	149 ms	764 KB	Output is correct
7	Correct	142 ms	632 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	393 ms	69252 KB	Output is correct
12	Correct	398 ms	69068 KB	Output is correct
13	Correct	390 ms	69216 KB	Output is correct
14	Correct	389 ms	69212 KB	Output is correct
15	Correct	398 ms	69184 KB	Output is correct
16	Correct	398 ms	68984 KB	Output is correct
17	Correct	406 ms	69104 KB	Output is correct
18	Correct	400 ms	68984 KB	Output is correct

Subtask #2

15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	512 KB	Output is correct
9	Correct	2 ms	512 KB	Output is correct
10	Correct	2 ms	512 KB	Output is correct
11	Correct	1 ms	512 KB	Output is correct
12	Correct	2 ms	512 KB	Output is correct
13	Correct	2 ms	512 KB	Output is correct
14	Correct	2 ms	512 KB	Output is correct
15	Correct	2 ms	512 KB	Output is correct
16	Correct	2 ms	512 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	2 ms	544 KB	Output is correct
19	Correct	1 ms	384 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct

Subtask #3

35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	322 ms	69368 KB	Output is correct
2	Correct	104 ms	1028 KB	Output is correct
3	Correct	97 ms	1020 KB	Output is correct
4	Correct	90 ms	1016 KB	Output is correct
5	Correct	100 ms	1016 KB	Output is correct
6	Correct	100 ms	1020 KB	Output is correct
7	Correct	100 ms	1016 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	383 ms	69240 KB	Output is correct
12	Correct	342 ms	69496 KB	Output is correct
13	Correct	400 ms	69176 KB	Output is correct
14	Correct	392 ms	69240 KB	Output is correct
15	Correct	319 ms	69496 KB	Output is correct
16	Correct	400 ms	69880 KB	Output is correct
17	Correct	396 ms	69740 KB	Output is correct
18	Correct	374 ms	69844 KB	Output is correct
19	Correct	335 ms	69048 KB	Output is correct
20	Correct	395 ms	69112 KB	Output is correct
21	Correct	338 ms	69112 KB	Output is correct

Subtask #4

11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	706 ms	68856 KB	Output is correct
2	Correct	164 ms	632 KB	Output is correct
3	Correct	169 ms	632 KB	Output is correct
4	Correct	165 ms	504 KB	Output is correct
5	Correct	170 ms	504 KB	Output is correct
6	Correct	172 ms	516 KB	Output is correct
7	Correct	169 ms	760 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	670 ms	68796 KB	Output is correct
12	Correct	694 ms	68728 KB	Output is correct
13	Correct	729 ms	68600 KB	Output is correct
14	Correct	655 ms	68600 KB	Output is correct
15	Correct	624 ms	68600 KB	Output is correct
16	Correct	751 ms	68724 KB	Output is correct
17	Correct	686 ms	68856 KB	Output is correct
18	Correct	752 ms	68624 KB	Output is correct
19	Correct	654 ms	68728 KB	Output is correct
20	Correct	643 ms	68604 KB	Output is correct
21	Correct	664 ms	68660 KB	Output is correct

Subtask #5

13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	322 ms	69368 KB	Output is correct
2	Correct	104 ms	1028 KB	Output is correct
3	Correct	97 ms	1020 KB	Output is correct
4	Correct	90 ms	1016 KB	Output is correct
5	Correct	100 ms	1016 KB	Output is correct
6	Correct	100 ms	1020 KB	Output is correct
7	Correct	100 ms	1016 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	383 ms	69240 KB	Output is correct
12	Correct	342 ms	69496 KB	Output is correct
13	Correct	400 ms	69176 KB	Output is correct
14	Correct	392 ms	69240 KB	Output is correct
15	Correct	319 ms	69496 KB	Output is correct
16	Correct	400 ms	69880 KB	Output is correct
17	Correct	396 ms	69740 KB	Output is correct
18	Correct	374 ms	69844 KB	Output is correct
19	Correct	335 ms	69048 KB	Output is correct
20	Correct	395 ms	69112 KB	Output is correct
21	Correct	338 ms	69112 KB	Output is correct
22	Correct	885 ms	68764 KB	Output is correct
23	Correct	165 ms	760 KB	Output is correct
24	Correct	164 ms	632 KB	Output is correct
25	Correct	163 ms	632 KB	Output is correct
26	Correct	168 ms	632 KB	Output is correct
27	Correct	165 ms	632 KB	Output is correct
28	Correct	166 ms	712 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	1 ms	384 KB	Output is correct
32	Correct	1008 ms	68984 KB	Output is correct
33	Correct	932 ms	68728 KB	Output is correct
34	Correct	972 ms	68856 KB	Output is correct
35	Correct	985 ms	68984 KB	Output is correct
36	Correct	703 ms	69112 KB	Output is correct
37	Correct	741 ms	69112 KB	Output is correct
38	Correct	746 ms	68972 KB	Output is correct
39	Correct	904 ms	68728 KB	Output is correct
40	Correct	916 ms	68856 KB	Output is correct
41	Correct	946 ms	68852 KB	Output is correct
42	Correct	1020 ms	68860 KB	Output is correct
43	Correct	912 ms	68984 KB	Output is correct
44	Correct	872 ms	68856 KB	Output is correct
45	Correct	885 ms	68980 KB	Output is correct

Subtask #6

17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	416 ms	69112 KB	Output is correct
2	Correct	147 ms	632 KB	Output is correct
3	Correct	150 ms	724 KB	Output is correct
4	Correct	145 ms	720 KB	Output is correct
5	Correct	142 ms	760 KB	Output is correct
6	Correct	149 ms	764 KB	Output is correct
7	Correct	142 ms	632 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	393 ms	69252 KB	Output is correct
12	Correct	398 ms	69068 KB	Output is correct
13	Correct	390 ms	69216 KB	Output is correct
14	Correct	389 ms	69212 KB	Output is correct
15	Correct	398 ms	69184 KB	Output is correct
16	Correct	398 ms	68984 KB	Output is correct
17	Correct	406 ms	69104 KB	Output is correct
18	Correct	400 ms	68984 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	1 ms	384 KB	Output is correct
21	Correct	1 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	2 ms	512 KB	Output is correct
27	Correct	2 ms	512 KB	Output is correct
28	Correct	2 ms	512 KB	Output is correct
29	Correct	1 ms	512 KB	Output is correct
30	Correct	2 ms	512 KB	Output is correct
31	Correct	2 ms	512 KB	Output is correct
32	Correct	2 ms	512 KB	Output is correct
33	Correct	2 ms	512 KB	Output is correct
34	Correct	2 ms	512 KB	Output is correct
35	Correct	2 ms	512 KB	Output is correct
36	Correct	2 ms	544 KB	Output is correct
37	Correct	1 ms	384 KB	Output is correct
38	Correct	1 ms	384 KB	Output is correct
39	Correct	2 ms	384 KB	Output is correct
40	Correct	322 ms	69368 KB	Output is correct
41	Correct	104 ms	1028 KB	Output is correct
42	Correct	97 ms	1020 KB	Output is correct
43	Correct	90 ms	1016 KB	Output is correct
44	Correct	100 ms	1016 KB	Output is correct
45	Correct	100 ms	1020 KB	Output is correct
46	Correct	100 ms	1016 KB	Output is correct
47	Correct	1 ms	384 KB	Output is correct
48	Correct	1 ms	384 KB	Output is correct
49	Correct	1 ms	384 KB	Output is correct
50	Correct	383 ms	69240 KB	Output is correct
51	Correct	342 ms	69496 KB	Output is correct
52	Correct	400 ms	69176 KB	Output is correct
53	Correct	392 ms	69240 KB	Output is correct
54	Correct	319 ms	69496 KB	Output is correct
55	Correct	400 ms	69880 KB	Output is correct
56	Correct	396 ms	69740 KB	Output is correct
57	Correct	374 ms	69844 KB	Output is correct
58	Correct	335 ms	69048 KB	Output is correct
59	Correct	395 ms	69112 KB	Output is correct
60	Correct	338 ms	69112 KB	Output is correct
61	Correct	706 ms	68856 KB	Output is correct
62	Correct	164 ms	632 KB	Output is correct
63	Correct	169 ms	632 KB	Output is correct
64	Correct	165 ms	504 KB	Output is correct
65	Correct	170 ms	504 KB	Output is correct
66	Correct	172 ms	516 KB	Output is correct
67	Correct	169 ms	760 KB	Output is correct
68	Correct	2 ms	384 KB	Output is correct
69	Correct	1 ms	384 KB	Output is correct
70	Correct	1 ms	384 KB	Output is correct
71	Correct	670 ms	68796 KB	Output is correct
72	Correct	694 ms	68728 KB	Output is correct
73	Correct	729 ms	68600 KB	Output is correct
74	Correct	655 ms	68600 KB	Output is correct
75	Correct	624 ms	68600 KB	Output is correct
76	Correct	751 ms	68724 KB	Output is correct
77	Correct	686 ms	68856 KB	Output is correct
78	Correct	752 ms	68624 KB	Output is correct
79	Correct	654 ms	68728 KB	Output is correct
80	Correct	643 ms	68604 KB	Output is correct
81	Correct	664 ms	68660 KB	Output is correct
82	Correct	885 ms	68764 KB	Output is correct
83	Correct	165 ms	760 KB	Output is correct
84	Correct	164 ms	632 KB	Output is correct
85	Correct	163 ms	632 KB	Output is correct
86	Correct	168 ms	632 KB	Output is correct
87	Correct	165 ms	632 KB	Output is correct
88	Correct	166 ms	712 KB	Output is correct
89	Correct	1 ms	384 KB	Output is correct
90	Correct	1 ms	384 KB	Output is correct
91	Correct	1 ms	384 KB	Output is correct
92	Correct	1008 ms	68984 KB	Output is correct
93	Correct	932 ms	68728 KB	Output is correct
94	Correct	972 ms	68856 KB	Output is correct
95	Correct	985 ms	68984 KB	Output is correct
96	Correct	703 ms	69112 KB	Output is correct
97	Correct	741 ms	69112 KB	Output is correct
98	Correct	746 ms	68972 KB	Output is correct
99	Correct	904 ms	68728 KB	Output is correct
100	Correct	916 ms	68856 KB	Output is correct
101	Correct	946 ms	68852 KB	Output is correct
102	Correct	1020 ms	68860 KB	Output is correct
103	Correct	912 ms	68984 KB	Output is correct
104	Correct	872 ms	68856 KB	Output is correct
105	Correct	885 ms	68980 KB	Output is correct
106	Correct	1167 ms	70060 KB	Output is correct
107	Correct	217 ms	1656 KB	Output is correct
108	Correct	206 ms	1528 KB	Output is correct
109	Correct	246 ms	1528 KB	Output is correct
110	Correct	1 ms	384 KB	Output is correct
111	Correct	1 ms	384 KB	Output is correct
112	Correct	1 ms	384 KB	Output is correct
113	Correct	917 ms	70008 KB	Output is correct
114	Correct	916 ms	70008 KB	Output is correct
115	Correct	922 ms	69880 KB	Output is correct
116	Correct	878 ms	69880 KB	Output is correct
117	Correct	1156 ms	70112 KB	Output is correct
118	Correct	885 ms	69752 KB	Output is correct
119	Correct	894 ms	69780 KB	Output is correct
120	Correct	394 ms	71032 KB	Output is correct
121	Correct	403 ms	70904 KB	Output is correct
122	Correct	405 ms	70888 KB	Output is correct
123	Correct	355 ms	70264 KB	Output is correct
124	Correct	335 ms	70264 KB	Output is correct
125	Correct	342 ms	70152 KB	Output is correct
126	Correct	1168 ms	70020 KB	Output is correct
127	Correct	1128 ms	69940 KB	Output is correct
128	Correct	1127 ms	70264 KB	Output is correct
129	Correct	1181 ms	70264 KB	Output is correct
130	Correct	811 ms	70628 KB	Output is correct
131	Correct	780 ms	70732 KB	Output is correct
132	Correct	759 ms	70780 KB	Output is correct
133	Correct	1152 ms	70032 KB	Output is correct
134	Correct	1142 ms	70008 KB	Output is correct
135	Correct	1139 ms	70008 KB	Output is correct
136	Correct	209 ms	1528 KB	Output is correct
137	Correct	218 ms	1784 KB	Output is correct
138	Correct	208 ms	1528 KB	Output is correct