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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#522788#8833. Equalizer Ehrmantrautucup-team3723#AC ✓120ms3712kbC++20594b2024-08-17 14:12:052024-08-17 14:12:07

Judging History

This is the latest submission verdict.

  • [2024-08-17 14:12:07]
  • Judged
  • Verdict: AC
  • Time: 120ms
  • Memory: 3712kb
  • [2024-08-17 14:12:05]
  • Submitted

answer

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

long long pow(long long a, long long k, long long m)
{
    long long ret = 1;
    for (a %= m; k > 0; k >>= 1, a = a * a % m) if (k & 1) ret = ret * a % m;
    return ret;
}

int main()
{
    const int mod = 998244353;
    int n, m;
    cin >> n >> m;
    long long ans = 0, tmp = pow(m, n, mod);
    for (int i = 0; i < m; ++i)
    {
        long long v = (2 * tmp - pow(i + 1, n, mod) + mod - pow(i, n, mod) + mod) % mod;
        ans = (ans + v) % mod;
    }
    cout << ans << endl;
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3580kb

input:

1 3

output:

9

result:

ok 1 number(s): "9"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

2 2

output:

10

result:

ok 1 number(s): "10"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3664kb

input:

69 42

output:

608932821

result:

ok 1 number(s): "608932821"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

102 156

output:

748401290

result:

ok 1 number(s): "748401290"

Test #5:

score: 0
Accepted
time: 6ms
memory: 3648kb

input:

4646 95641

output:

89806680

result:

ok 1 number(s): "89806680"

Test #6:

score: 0
Accepted
time: 19ms
memory: 3712kb

input:

42849 215151

output:

242217237

result:

ok 1 number(s): "242217237"

Test #7:

score: 0
Accepted
time: 101ms
memory: 3652kb

input:

786416 794116

output:

472898000

result:

ok 1 number(s): "472898000"

Test #8:

score: 0
Accepted
time: 99ms
memory: 3568kb

input:

963852 789456

output:

353211048

result:

ok 1 number(s): "353211048"

Test #9:

score: 0
Accepted
time: 51ms
memory: 3576kb

input:

696969 424242

output:

787990158

result:

ok 1 number(s): "787990158"

Test #10:

score: 0
Accepted
time: 16ms
memory: 3652kb

input:

1000000 123456

output:

533491028

result:

ok 1 number(s): "533491028"

Test #11:

score: 0
Accepted
time: 120ms
memory: 3620kb

input:

1000000 1000000

output:

572586375

result:

ok 1 number(s): "572586375"

Test #12:

score: 0
Accepted
time: 100ms
memory: 3588kb

input:

123456 1000000

output:

486967129

result:

ok 1 number(s): "486967129"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

789456 1

output:

1

result:

ok 1 number(s): "1"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

852516 2

output:

148946358

result:

ok 1 number(s): "148946358"

Test #15:

score: 0
Accepted
time: 7ms
memory: 3652kb

input:

1 953646

output:

40087733

result:

ok 1 number(s): "40087733"

Test #16:

score: 0
Accepted
time: 0ms
memory: 3656kb

input:

3 7686

output:

278212472

result:

ok 1 number(s): "278212472"

Extra Test:

score: 0
Extra Test Passed