QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #570049 | #8833. Equalizer Ehrmantraut | Djangle162857# | AC ✓ | 116ms | 3692kb | C++17 | 460b | 2024-09-17 13:28:55 | 2024-09-17 13:29:00 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int P=998244353;
int qpow(int a,int b) {
int ret=1;
while(b) {
if(b&1) ret=ret*a%P;
a=a*a%P;
b>>=1;
}
return ret;
}
int n,m;
signed main() {
//cout<<qpow(2,3)<<endl;
cin>>n>>m;
int ans=0;
for(int i=1;i<=m;i++) {
ans+=P-qpow(i,n)+qpow(m,n);
ans%=P;
//cout<<ans<<endl;
}
ans*=2;ans%=P;
ans+=qpow(m,n);ans%=P;
cout<<ans<<endl;
return 0;
}
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: 3684kb
input:
1 3
output:
9
result:
ok 1 number(s): "9"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3628kb
input:
2 2
output:
10
result:
ok 1 number(s): "10"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3628kb
input:
69 42
output:
608932821
result:
ok 1 number(s): "608932821"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3624kb
input:
102 156
output:
748401290
result:
ok 1 number(s): "748401290"
Test #5:
score: 0
Accepted
time: 6ms
memory: 3692kb
input:
4646 95641
output:
89806680
result:
ok 1 number(s): "89806680"
Test #6:
score: 0
Accepted
time: 15ms
memory: 3568kb
input:
42849 215151
output:
242217237
result:
ok 1 number(s): "242217237"
Test #7:
score: 0
Accepted
time: 96ms
memory: 3632kb
input:
786416 794116
output:
472898000
result:
ok 1 number(s): "472898000"
Test #8:
score: 0
Accepted
time: 94ms
memory: 3640kb
input:
963852 789456
output:
353211048
result:
ok 1 number(s): "353211048"
Test #9:
score: 0
Accepted
time: 48ms
memory: 3548kb
input:
696969 424242
output:
787990158
result:
ok 1 number(s): "787990158"
Test #10:
score: 0
Accepted
time: 15ms
memory: 3624kb
input:
1000000 123456
output:
533491028
result:
ok 1 number(s): "533491028"
Test #11:
score: 0
Accepted
time: 116ms
memory: 3560kb
input:
1000000 1000000
output:
572586375
result:
ok 1 number(s): "572586375"
Test #12:
score: 0
Accepted
time: 93ms
memory: 3620kb
input:
123456 1000000
output:
486967129
result:
ok 1 number(s): "486967129"
Test #13:
score: 0
Accepted
time: 0ms
memory: 3684kb
input:
789456 1
output:
1
result:
ok 1 number(s): "1"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3692kb
input:
852516 2
output:
148946358
result:
ok 1 number(s): "148946358"
Test #15:
score: 0
Accepted
time: 5ms
memory: 3564kb
input:
1 953646
output:
40087733
result:
ok 1 number(s): "40087733"
Test #16:
score: 0
Accepted
time: 0ms
memory: 3684kb
input:
3 7686
output:
278212472
result:
ok 1 number(s): "278212472"
Extra Test:
score: 0
Extra Test Passed