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Submission #1029413

# Submission time Handle Problem Language Result Execution time Memory
1029413 2024-07-20T20:21:15 Z yeediot Flooding Wall (BOI24_wall) C++17
100 / 100
 2510 ms 804064 KB 
#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
#ifdef local
void CHECK();
void setio(){
    freopen("/Users/iantsai/cpp/input.txt","r",stdin);
    freopen("/Users/iantsai/cpp/output.txt","w",stdout);
}
#else
void setio(){}
#endif
#define TOI_is_so_de ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);setio();
const int mxn = 5e5 + 5, mod = 1e9 + 7;
int n, a[mxn], b[mxn], pw[mxn];
#define s seg[id]
#define L seg[seg[id].lc]
#define R seg[seg[id].rc]
struct node{
    long long val, tag;
    int lc, rc;
};
struct segment_tree{
    int tmr = 0;
    vector<node>seg = {{0, 0, 0, 0}};
    void new_node(int l, int r){
        int id = ++tmr;
        seg.pb({0, 0, 0, 0});
        s.val = r - l + 1;
        s.tag = 1;
        s.lc = s.rc = -1;
    }
    void push(int id, int l, int r){
        int mm = (long long) l + r >> 1;
        if(s.lc == -1){
            new_node(l, mm);
            s.lc = tmr;
        }
        if(s.rc == -1){
            new_node(mm + 1, r);
            s.rc = tmr;
        }
        (L.tag *= s.tag) %= mod;
        (R.tag *= s.tag) %= mod;
        (L.val *= s.tag) %= mod;
        (R.val *= s.tag) %= mod;
        s.tag = 1;
    }
    void merge(int id){
        s.val = ((long long)L.val + R.val) % mod;
    }
    void modify(int l, int r, int id, int ql, int qr, int v){
        if(qr < l or r < ql) return;
        if(ql <= l and r <= qr){
            s.val = (long long)s.val * v % mod;
            s.tag = (long long)s.tag * v % mod;
            return;
        }
        push(id, l, r);
        int mm = (long long) l + r >> 1;
        modify(l, mm, s.lc, ql, qr, v);
        modify(mm + 1, r, s.rc, ql, qr, v);
        merge(id);
    }
};
void solve(){
    cin >> n;
    pw[0] = 1;
    for(int i = 1; i <= n; i++){
        pw[i] = pw[i - 1] * 2 % mod;
    }
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    for(int i = 1; i <= n; i++){
        cin >> b[i];
        if(a[i] > b[i]) swap(a[i], b[i]);
    }
    long long ans = 0;
    segment_tree t1;
    t1.new_node(1, mod);
    for(int i = 1; i <= n; i++){
        t1.modify(1, mod, 1, 1, a[i], 0);
        t1.modify(1, mod, 1, b[i] + 1, mod, 2);
        ans = (ans - (long long)t1.seg[1].val * pw[n - i] % mod) % mod;
    }
    t1.seg.clear();
    t1.tmr = 0;
    t1.seg.pb({0, 0, 0, 0});
    t1.new_node(1, mod);
    for(int i = n; i >= 1; i--){
        t1.modify(1, mod, 1, 1, a[i], 0);
        t1.modify(1, mod, 1, b[i] + 1, mod, 2);
        ans = (ans - (long long)t1.seg[1].val * pw[i - 1] % mod) % mod;
    }
    ans = ((long long)ans + (long long)n * t1.seg[1].val % mod);
    for(int i = 1; i <= n; i++){
        ans = ((long long)ans + pw[n - 1] * ((long long)b[i] - a[i] + (mod - b[i]) * 2LL % mod)) % mod;
    }
    if(ans < 0) ans += mod;
    cout << ans << '\n';
}
signed main(){
    TOI_is_so_de;
    int t = 1;
    while(t--){
        solve();
    }
}
/*
input:
 
*/

Compilation message

Main.cpp: In member function 'void segment_tree::push(int, int, int)':
Main.cpp:47:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   47 |         int mm = (long long) l + r >> 1;
      |                  ~~~~~~~~~~~~~~^~~
Main.cpp: In member function 'void segment_tree::modify(int, int, int, int, int, int)':
Main.cpp:73:32: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   73 |         int mm = (long long) l + r >> 1;
      |                  ~~~~~~~~~~~~~~^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 23 ms 744 KB Output is correct
28 Correct 26 ms 604 KB Output is correct
29 Correct 23 ms 348 KB Output is correct
30 Correct 23 ms 348 KB Output is correct
31 Correct 23 ms 608 KB Output is correct
32 Correct 24 ms 604 KB Output is correct
33 Correct 23 ms 604 KB Output is correct
34 Correct 23 ms 600 KB Output is correct
35 Correct 23 ms 604 KB Output is correct
36 Correct 23 ms 604 KB Output is correct
37 Correct 23 ms 348 KB Output is correct
38 Correct 23 ms 348 KB Output is correct
39 Correct 23 ms 604 KB Output is correct
40 Correct 23 ms 604 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 23 ms 744 KB Output is correct
50 Correct 26 ms 604 KB Output is correct
51 Correct 23 ms 348 KB Output is correct
52 Correct 23 ms 348 KB Output is correct
53 Correct 23 ms 608 KB Output is correct
54 Correct 24 ms 604 KB Output is correct
55 Correct 23 ms 604 KB Output is correct
56 Correct 23 ms 600 KB Output is correct
57 Correct 23 ms 604 KB Output is correct
58 Correct 23 ms 604 KB Output is correct
59 Correct 23 ms 348 KB Output is correct
60 Correct 23 ms 348 KB Output is correct
61 Correct 23 ms 604 KB Output is correct
62 Correct 23 ms 604 KB Output is correct
63 Correct 48 ms 25268 KB Output is correct
64 Correct 49 ms 25424 KB Output is correct
65 Correct 25 ms 604 KB Output is correct
66 Correct 24 ms 604 KB Output is correct
67 Correct 21 ms 732 KB Output is correct
68 Correct 21 ms 604 KB Output is correct
69 Correct 25 ms 7032 KB Output is correct
70 Correct 26 ms 6860 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 20 ms 348 KB Output is correct
11 Correct 20 ms 344 KB Output is correct
12 Correct 20 ms 348 KB Output is correct
13 Correct 20 ms 600 KB Output is correct
14 Correct 984 ms 6304 KB Output is correct
15 Correct 1058 ms 6228 KB Output is correct
16 Correct 1043 ms 6236 KB Output is correct
17 Correct 1084 ms 6224 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 344 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 344 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 23 ms 744 KB Output is correct
50 Correct 26 ms 604 KB Output is correct
51 Correct 23 ms 348 KB Output is correct
52 Correct 23 ms 348 KB Output is correct
53 Correct 23 ms 608 KB Output is correct
54 Correct 24 ms 604 KB Output is correct
55 Correct 23 ms 604 KB Output is correct
56 Correct 23 ms 600 KB Output is correct
57 Correct 23 ms 604 KB Output is correct
58 Correct 23 ms 604 KB Output is correct
59 Correct 23 ms 348 KB Output is correct
60 Correct 23 ms 348 KB Output is correct
61 Correct 23 ms 604 KB Output is correct
62 Correct 23 ms 604 KB Output is correct
63 Correct 48 ms 25268 KB Output is correct
64 Correct 49 ms 25424 KB Output is correct
65 Correct 25 ms 604 KB Output is correct
66 Correct 24 ms 604 KB Output is correct
67 Correct 21 ms 732 KB Output is correct
68 Correct 21 ms 604 KB Output is correct
69 Correct 25 ms 7032 KB Output is correct
70 Correct 26 ms 6860 KB Output is correct
71 Correct 0 ms 348 KB Output is correct
72 Correct 0 ms 348 KB Output is correct
73 Correct 0 ms 348 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 1 ms 348 KB Output is correct
79 Correct 0 ms 348 KB Output is correct
80 Correct 20 ms 348 KB Output is correct
81 Correct 20 ms 344 KB Output is correct
82 Correct 20 ms 348 KB Output is correct
83 Correct 20 ms 600 KB Output is correct
84 Correct 984 ms 6304 KB Output is correct
85 Correct 1058 ms 6228 KB Output is correct
86 Correct 1043 ms 6236 KB Output is correct
87 Correct 1084 ms 6224 KB Output is correct
88 Correct 2491 ms 804064 KB Output is correct
89 Correct 2510 ms 804004 KB Output is correct
90 Correct 1036 ms 8272 KB Output is correct
91 Correct 1165 ms 16172 KB Output is correct
92 Correct 988 ms 8272 KB Output is correct
93 Correct 1004 ms 8272 KB Output is correct
94 Correct 1065 ms 16344 KB Output is correct
95 Correct 1029 ms 8368 KB Output is correct
96 Correct 1345 ms 209380 KB Output is correct
97 Correct 1400 ms 209152 KB Output is correct