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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#83389#2831. Game Theoryuniecho1#WA 210ms16296kbC++173.0kb2023-03-01 17:29:502023-03-01 17:29:53

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-01 17:29:53]
  • 评测
  • 测评结果:WA
  • 用时:210ms
  • 内存:16296kb
  • [2023-03-01 17:29:50]
  • 提交

answer

#pragma GCC optimize(2)
#pragma GCC optimize(3)
#include <bits/stdc++.h>
#define int long long
#define pii pair<int, int>
#define mkp make_pair
#define endl '\n'
using namespace std;

const int MAXN = 2e5 + 5;
const int mod = 998244353;

struct segtree {
    int sum[MAXN << 2], num[MAXN << 2];
    bool rev[MAXN << 2];

    void update(int id) {
        sum[id] = sum[id << 1] + sum[id << 1 | 1];
        num[id] = num[id << 1] + num[id << 1 | 1];
    }
    void pushdown(int l, int r, int id) {
        if (rev[id]) {
            rev[id] ^= 1;
            rev[id << 1] ^= 1;
            rev[id << 1 | 1] ^= 1;
            int m = l + r >> 1;
            sum[id << 1] = (l + m) * (m - l + 1) / 2 - sum[id << 1];
            num[id << 1] = (m - l + 1) - num[id << 1];
            sum[id << 1 | 1] = (m + 1 + r) * (r - m) / 2 - sum[id << 1 | 1];
            num[id << 1 | 1] = (r - m) - num[id << 1 | 1];
        }
    }
    void build(int l, int r, int id) {
        rev[id] = 0;
        sum[id] = num[id] = 0;
        if (l == r) {
            char c;
            cin >> c;
            if (c == '1') num[id] = 1, sum[id] = l;
            return;
        }
        int m = l + r >> 1;
        build(l, m, id << 1);
        build(m + 1, r, id << 1 | 1);
        update(id);
    }
    void revolve(int x, int y, int l, int r, int id) {
        if (x > y) return;
        if (x <= l && r <= y) {
            sum[id] = (l + r) * (r - l + 1) / 2 - sum[id];
            num[id] = r - l + 1 - num[id];
            rev[id] ^= 1;
            return;
        }
        pushdown(l, r, id);
        int m = l + r >> 1;
        if (x <= m) revolve(x, y, l, m, id << 1);
        if (y > m) revolve(x, y, m + 1, r, id << 1 | 1);
        update(id);
    }
    pii query(int x, int y, int l, int r, int id) {
        // cout << x << " " << y << " " << l << " " << r << endl;
        if (x > y) return mkp(0, 0);
        if (x <= l && r <= y) return mkp(sum[id], num[id]);
        int m = l + r >> 1;
        pushdown(l, r, id);
        if (x <= m && y > m) {
            auto a = query(x, y, l, m, id << 1);
            auto b = query(x, y, m + 1, r, id << 1 | 1);
            return mkp((0ll + a.first + b.first) % mod, a.second + b.second);
        } else if (x <= m)
            return query(x, y, l, m, id << 1);
        else
            return query(x, y, m + 1, r, id << 1 | 1);
    }
} T;

int N, Q;

signed main() {
    // freopen("in.txt", "r", stdin);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    while (cin >> N >> Q) {
        T.build(1, N, 1);
        for (int i = 1, l, r; i <= Q; i++) {
            cin >> l >> r;
            T.revolve(l, r, 1, N, 1);
            int k = T.query(1, N, 1, N, 1).second;
            int part2 = T.query(k + 1, N, 1, N, 1).first;
            int part1 = T.query(1, k, 1, N, 1).first;
            part1 = 1ll * (1 + k) * k / 2 - part1;
            int ans = (k - 2 * part1 + 2 * part2) % mod;
            cout << ans << endl;
        }
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 7420kb

input:

3 2
010
1 2
2 3
5 1
00000
1 5

output:

1
3
5

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 3ms
memory: 7412kb

input:

1 1
0
1 1

output:

1

result:

ok single line: '1'

Test #3:

score: 0
Accepted
time: 44ms
memory: 5428kb

input:

2 2
01
2 2
2 2
2 2
01
1 2
1 2
1 2
1
1 1
1 1
1 2
1
1 1
1 1
2 2
00
1 2
1 2
2 2
11
1 2
1 2
2 2
01
2 2
1 1
2 2
10
2 2
1 2
2 2
01
1 2
1 2
1 2
0
1 1
1 1
2 2
01
1 2
2 2
1 2
0
1 1
1 1
1 2
1
1 1
1 1
2 2
10
1 2
1 1
1 2
0
1 1
1 1
2 2
01
1 2
1 2
2 2
10
1 2
1 1
1 2
0
1 1
1 1
1 2
0
1 1
1 1
1 2
1
1 1
1 1
2 2
10
1 ...

output:

0
3
1
3
0
1
0
1
2
0
0
2
0
1
2
0
1
3
1
0
1
2
1
0
0
1
3
2
1
0
1
3
3
2
1
0
1
0
0
1
0
1
0
2
2
1
0
1
2
1
1
0
2
0
2
3
1
0
0
1
2
0
0
1
0
1
0
1
1
0
1
2
2
0
0
2
0
1
0
1
1
0
1
0
1
0
0
1
0
1
0
1
2
0
3
0
1
0
0
1
1
0
1
0
1
2
0
2
1
0
0
3
1
2
0
1
3
2
1
0
0
1
2
0
2
0
0
1
0
1
1
0
1
0
1
0
1
0
1
2
1
0
3
1
0
3
0
1
0
1
...

result:

ok 200000 lines

Test #4:

score: 0
Accepted
time: 54ms
memory: 5432kb

input:

11 20
00010111000
1 6
1 11
5 6
8 11
1 4
3 8
4 11
1 7
5 9
1 4
6 10
5 6
1 7
5 10
1 10
9 11
6 8
1 4
8 11
1 4
10 20
0101000010
3 4
2 2
4 8
4 6
6 7
3 7
3 3
1 5
1 5
6 8
2 2
2 4
2 6
5 7
1 3
2 5
6 8
7 9
5 8
3 10
4 20
1011
2 4
1 4
1 3
2 3
1 1
2 2
1 2
2 4
1 2
3 4
3 4
3 4
1 4
2 2
1 4
1 3
1 1
1 3
1 3
2 2
4 20
1...

output:

16
55
53
25
13
15
43
52
41
33
34
40
43
45
35
28
25
33
45
37
19
20
35
38
36
41
36
29
36
29
22
31
20
23
28
20
21
10
14
30
2
10
5
7
10
9
7
2
0
10
0
10
2
1
9
6
7
4
7
8
4
9
1
6
8
3
5
7
3
7
6
8
6
9
6
7
2
0
5
3
66
105
83
68
92
137
92
76
85
92
127
120
119
104
124
65
70
88
61
53
40
43
25
21
32
59
67
32
29
50...

result:

ok 200000 lines

Test #5:

score: 0
Accepted
time: 77ms
memory: 5364kb

input:

11 200
11100010010
2 3
3 7
1 7
3 10
1 3
7 11
2 8
4 8
9 10
9 11
2 7
1 4
9 11
6 7
4 4
8 10
2 6
2 3
1 2
5 7
2 7
1 3
3 4
2 10
9 10
6 11
3 11
3 9
9 10
2 6
5 10
1 8
4 9
6 7
8 11
3 9
7 10
1 9
4 5
5 8
5 7
2 7
6 8
10 10
5 10
7 11
1 11
6 10
2 11
1 4
4 8
6 11
7 10
8 10
4 5
7 10
7 8
4 4
1 6
7 11
3 5
4 9
3 9
8 1...

output:

27
22
29
25
30
39
34
17
15
12
18
22
33
35
40
45
54
36
34
37
39
52
54
37
39
33
40
51
37
46
52
24
26
24
16
7
35
30
32
40
39
37
28
15
41
28
39
4
26
54
49
31
39
26
28
44
46
41
35
26
17
31
24
28
30
22
38
13
18
60
38
36
49
41
41
43
27
28
54
41
14
16
7
8
20
22
45
26
27
20
21
12
27
31
28
21
39
37
39
30
31
2...

result:

ok 200000 lines

Test #6:

score: 0
Accepted
time: 104ms
memory: 5592kb

input:

228 2000
111000100100000001001101001100110001011110001110001000101110101100010011011111000001011011000110111010111101011000010010000111111111100011111011011100111010011100111001010011110110011000100100110011111000110001111001010011001010
23 112
24 165
103 162
86 203
99 204
114 217
55 132
168 184
110...

output:

13974
13044
13700
13434
14000
13220
13546
13913
13184
13533
13051
13689
13533
14119
14470
13742
13980
13022
13167
13648
13592
13159
13028
13041
12964
12996
12792
12539
12039
11974
12336
12742
12841
12831
12730
12004
12065
12352
13037
11923
12332
14242
13475
13935
13121
12996
12755
13353
13720
13043
...

result:

ok 200000 lines

Test #7:

score: 0
Accepted
time: 152ms
memory: 7732kb

input:

20000 20000
110010001110111001001001011110011011011011101011010000011100100100110000011111000010010101001001110101010000011010101110001100111010000101000010110100011111001100001110011011001011010000100110010001000101111101001011100110101111110110100001100100110100000100100001011100111011000101111010...

output:

99977542
98746996
98989557
99015753
98938270
98605428
99504163
99699325
101118187
100862580
99993292
99728608
101006398
100940632
100522798
99799311
99585772
100035886
99976445
99131130
99309148
99370536
100535551
99600860
99595679
99735286
99976663
100435885
100334687
100103891
100055339
100160376
...

result:

ok 200000 lines

Test #8:

score: -100
Wrong Answer
time: 210ms
memory: 16296kb

input:

200000 200000
1101110010111101001110011011011100110000111011010010001110010111010000111100010101100111111010010100111110001001011000010110000100111111011110101101011011011101000010000110010011001011101000000100010110001100001010110010011101010100000011101111001110001110110000101101111011111101000101...

output:

-972342412
-3718891
-995429853
-994780590
-989014023
-969603467
-971262872
-983246575
-984420902
-992144426
-973542333
-976882196
-986271119
-984732379
-976590717
-965124713
-957894025
-952134702
-969052001
-954477846
-967515916
-969374196
-953054736
-994026410
-984685701
-962833596
-977672955
-9579...

result:

wrong answer 1st lines differ - expected: '25901941', found: '-972342412'