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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
#457880#8833. Equalizer Ehrmantrautucup-team3591#AC ✓128ms3832kbC++14618b2024-06-29 14:35:152024-06-29 14:35:15

Judging History

你现在查看的是最新测评结果

  • [2024-06-29 14:35:15]
  • 评测
  • 测评结果:AC
  • 用时:128ms
  • 内存:3832kb
  • [2024-06-29 14:35:15]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
const int MAXN=1000006,mod=998244353;
int n,m,ans;
inline int fastpow(int a,int k) {
	int base=1;
	for(; k; k>>=1,a=a*1ll*a%mod)if(k&1)base=base*1ll*a%mod;
	return base;
}
int main() {
	scanf("%d%d",&n,&m);
//	if(n==1) {
//		printf("%lld\n",m*1ll*m%mod);
//		return 0;
//	}
//	for(int i=1; i<=n; ++i)
//		for(int j=1; j<=m-1; ++j) {
//			ans=(ans+fastpow(m,n-i)*1ll*(m-j)%mod*fastpow(j,i-1))%mod;
//		}
	for(int j=1; j<=m; ++j)
		ans=(ans+fastpow(m,n)+0ll+mod-fastpow(j,n))%mod;
	ans=(ans+ans+0ll+fastpow(m,n))%mod;
	printf("%d\n",ans);
	return 0;
}

这程序好像有点Bug,我给组数据试试?

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3784kb

input:

1 3

output:

9

result:

ok 1 number(s): "9"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3748kb

input:

2 2

output:

10

result:

ok 1 number(s): "10"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

69 42

output:

608932821

result:

ok 1 number(s): "608932821"

Test #4:

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

input:

102 156

output:

748401290

result:

ok 1 number(s): "748401290"

Test #5:

score: 0
Accepted
time: 6ms
memory: 3740kb

input:

4646 95641

output:

89806680

result:

ok 1 number(s): "89806680"

Test #6:

score: 0
Accepted
time: 20ms
memory: 3740kb

input:

42849 215151

output:

242217237

result:

ok 1 number(s): "242217237"

Test #7:

score: 0
Accepted
time: 109ms
memory: 3652kb

input:

786416 794116

output:

472898000

result:

ok 1 number(s): "472898000"

Test #8:

score: 0
Accepted
time: 106ms
memory: 3832kb

input:

963852 789456

output:

353211048

result:

ok 1 number(s): "353211048"

Test #9:

score: 0
Accepted
time: 55ms
memory: 3716kb

input:

696969 424242

output:

787990158

result:

ok 1 number(s): "787990158"

Test #10:

score: 0
Accepted
time: 17ms
memory: 3788kb

input:

1000000 123456

output:

533491028

result:

ok 1 number(s): "533491028"

Test #11:

score: 0
Accepted
time: 128ms
memory: 3828kb

input:

1000000 1000000

output:

572586375

result:

ok 1 number(s): "572586375"

Test #12:

score: 0
Accepted
time: 108ms
memory: 3684kb

input:

123456 1000000

output:

486967129

result:

ok 1 number(s): "486967129"

Test #13:

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

input:

789456 1

output:

1

result:

ok 1 number(s): "1"

Test #14:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

852516 2

output:

148946358

result:

ok 1 number(s): "148946358"

Test #15:

score: 0
Accepted
time: 5ms
memory: 3744kb

input:

1 953646

output:

40087733

result:

ok 1 number(s): "40087733"

Test #16:

score: 0
Accepted
time: 0ms
memory: 3800kb

input:

3 7686

output:

278212472

result:

ok 1 number(s): "278212472"

Extra Test:

score: 0
Extra Test Passed