QOJ.ac
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 |
|---|---|---|---|---|---|---|---|---|---|
| #474508 | #8833. Equalizer Ehrmantraut | ucup-team866 | AC ✓ | 75ms | 3680kb | C++14 | 408b | 2024-07-12 19:30:23 | 2024-07-12 19:30:23 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int n, m, ans; const int MOD = 998244353;
int qpow(int x, int y) {
int t = 1;
for (; y; y>>=1) {
if (y & 1) t = 1ll * t * x % MOD;
x = 1ll * x * x % MOD;
} return t;
}
int main() {
cin >> n >> m;
for (int i=1; i<=m; i++)
ans = (ans + qpow(i, n)) % MOD;
ans = (1ll * (m << 1 | 1) * qpow(m, n) + (MOD - ans << 1)) % MOD;
cout << ans;
}
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: 3568kb
input:
1 3
output:
9
result:
ok 1 number(s): "9"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3672kb
input:
2 2
output:
10
result:
ok 1 number(s): "10"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3620kb
input:
69 42
output:
608932821
result:
ok 1 number(s): "608932821"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3480kb
input:
102 156
output:
748401290
result:
ok 1 number(s): "748401290"
Test #5:
score: 0
Accepted
time: 4ms
memory: 3484kb
input:
4646 95641
output:
89806680
result:
ok 1 number(s): "89806680"
Test #6:
score: 0
Accepted
time: 12ms
memory: 3624kb
input:
42849 215151
output:
242217237
result:
ok 1 number(s): "242217237"
Test #7:
score: 0
Accepted
time: 55ms
memory: 3568kb
input:
786416 794116
output:
472898000
result:
ok 1 number(s): "472898000"
Test #8:
score: 0
Accepted
time: 59ms
memory: 3480kb
input:
963852 789456
output:
353211048
result:
ok 1 number(s): "353211048"
Test #9:
score: 0
Accepted
time: 31ms
memory: 3616kb
input:
696969 424242
output:
787990158
result:
ok 1 number(s): "787990158"
Test #10:
score: 0
Accepted
time: 10ms
memory: 3484kb
input:
1000000 123456
output:
533491028
result:
ok 1 number(s): "533491028"
Test #11:
score: 0
Accepted
time: 75ms
memory: 3484kb
input:
1000000 1000000
output:
572586375
result:
ok 1 number(s): "572586375"
Test #12:
score: 0
Accepted
time: 62ms
memory: 3672kb
input:
123456 1000000
output:
486967129
result:
ok 1 number(s): "486967129"
Test #13:
score: 0
Accepted
time: 0ms
memory: 3672kb
input:
789456 1
output:
1
result:
ok 1 number(s): "1"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3680kb
input:
852516 2
output:
148946358
result:
ok 1 number(s): "148946358"
Test #15:
score: 0
Accepted
time: 4ms
memory: 3616kb
input:
1 953646
output:
40087733
result:
ok 1 number(s): "40087733"
Test #16:
score: 0
Accepted
time: 0ms
memory: 3524kb
input:
3 7686
output:
278212472
result:
ok 1 number(s): "278212472"
Extra Test:
score: 0
Extra Test Passed