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QOJ

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#460417	#8833. Equalizer Ehrmantraut	ucup-team1196	AC ✓	272ms	3876kb	C++20	1003b	2024-07-01 15:51:21	2024-07-01 15:51:21

Judging History

你现在查看的是最新测评结果

[2024-07-01 15:51:21]
评测

测评结果：AC
用时：272ms
内存：3876kb

查看

[2024-07-01 15:51:21]
提交

answer

/*

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    _/    _/    _/            _/    _/    _/    _/      _/_/          _/       _/    _/
   _/    _/    _/            _/    _/    _/    _/      _/            _/       _/    _/
    _/_/        _/_/_/      _/    _/      _/_/_/      _/            _/       _/    _/

*/
#include<bits/stdc++.h>
#define int long long

using namespace std;
const int mod=998244353,p=mod;

int qpow(int a,int b){
    int ans=1;
    for(;b;b>>=1){
        if(b&1) ans=(__int128)ans*a%p;
        a=(__int128)a*a%p;
    }
    return ans;
}

void solve(){
    int n,m;
    cin>>n>>m;
    int res=0;
    for(int i=1;i<=m;++i){
        (res+=qpow(m,n)-qpow(i,n)+mod)%mod;
    }
    res=res*2%mod;
    res=(res+qpow(m,n))%mod;
    cout<<res<<"\n";
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    solve();
}

源文件, 语言: C++20

这程序好像有点Bug，我给组数据试试？

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 3572kb

input:

1 3

output:

result:

ok 1 number(s): "9"

Test #2:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

2 2

output:

result:

ok 1 number(s): "10"

Test #3:

score: 0

Accepted

time: 0ms

memory: 3876kb

input:

69 42

output:

608932821

result:

ok 1 number(s): "608932821"

Test #4:

score: 0

Accepted

time: 0ms

memory: 3680kb

input:

102 156

output:

748401290

result:

ok 1 number(s): "748401290"

Test #5:

score: 0

Accepted

time: 15ms

memory: 3804kb

input:

4646 95641

output:

89806680

result:

ok 1 number(s): "89806680"

Test #6:

score: 0

Accepted

time: 47ms

memory: 3672kb

input:

42849 215151

output:

242217237

result:

ok 1 number(s): "242217237"

Test #7:

score: 0

Accepted

time: 243ms

memory: 3528kb

input:

786416 794116

output:

472898000

result:

ok 1 number(s): "472898000"

Test #8:

score: 0

Accepted

time: 224ms

memory: 3636kb

input:

963852 789456

output:

353211048

result:

ok 1 number(s): "353211048"

Test #9:

score: 0

Accepted

time: 113ms

memory: 3840kb

input:

696969 424242

output:

787990158

result:

ok 1 number(s): "787990158"

Test #10:

score: 0

Accepted

time: 34ms

memory: 3616kb

input:

1000000 123456

output:

533491028

result:

ok 1 number(s): "533491028"

Test #11:

score: 0

Accepted

time: 272ms

memory: 3584kb

input:

1000000 1000000

output:

572586375

result:

ok 1 number(s): "572586375"

Test #12:

score: 0

Accepted

time: 222ms

memory: 3676kb

input:

123456 1000000

output:

486967129

result:

ok 1 number(s): "486967129"

Test #13:

score: 0

Accepted

time: 0ms

memory: 3652kb

input:

789456 1

output:

result:

ok 1 number(s): "1"

Test #14:

score: 0

Accepted

time: 0ms

memory: 3576kb

input:

852516 2

output:

148946358

result:

ok 1 number(s): "148946358"

Test #15:

score: 0

Accepted

time: 13ms

memory: 3636kb

input:

1 953646

output:

40087733

result:

ok 1 number(s): "40087733"

Test #16:

score: 0

Accepted

time: 1ms

memory: 3528kb

input:

3 7686

output:

278212472

result:

ok 1 number(s): "278212472"

Extra Test:

score: 0

Extra Test Passed