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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 |
|---|---|---|---|---|---|---|---|---|---|
| #823290 | #8428. Partition into Teams | Lulu | AC ✓ | 12ms | 18120kb | C++14 | 964b | 2024-12-20 21:23:16 | 2024-12-20 21:23:17 |
Judging History
answer
#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N=1e6+5;
ll n,P;
ll qpow(ll b,ll p){
if(!p){
return 1;
}
if(!b){
return 0;
}
ll res=qpow(b,p/2);
res=res*res%P;
if(p&1){
res=res*b%P;
}
return res;
}
#define inv(i) qpow(i,P-2)
ll fac[N],ifac[N];
void init(int lmt=P-1){
fac[0]=1;
for(int i=1;i<=lmt;i++){
fac[i]=fac[i-1]*i%P;
}
ifac[lmt]=inv(fac[lmt]);
for(int i=lmt;i;i--){
ifac[i-1]=ifac[i]*i%P;
}
}
ll C(int n,int m){
return fac[n]*ifac[m]%P*ifac[n-m]%P;
}
ll dfs(ll x){
if(!x){
return 1;
}
ll res=0;
for(int i=0;i*2<=x%P;i++){
res+=C(x%P,2*i)*C(2*i,i)%P;
res%=P;
}
res*=dfs(x/P);
res%=P;
return res;
}
int main(){
scanf("%lld%lld",&n,&P);
init();
printf("%lld\n",(qpow(3,n)-dfs(n)+P)*inv(2)%P);
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5992kb
input:
5 5
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 0ms
memory: 6000kb
input:
5 7
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 1ms
memory: 5992kb
input:
789 97
output:
53
result:
ok 1 number(s): "53"
Test #4:
score: 0
Accepted
time: 1ms
memory: 5900kb
input:
98 23
output:
10
result:
ok 1 number(s): "10"
Test #5:
score: 0
Accepted
time: 0ms
memory: 5996kb
input:
398 7
output:
4
result:
ok 1 number(s): "4"
Test #6:
score: 0
Accepted
time: 1ms
memory: 5940kb
input:
272 31
output:
18
result:
ok 1 number(s): "18"
Test #7:
score: 0
Accepted
time: 1ms
memory: 5924kb
input:
920 199
output:
39
result:
ok 1 number(s): "39"
Test #8:
score: 0
Accepted
time: 0ms
memory: 5964kb
input:
390 5167
output:
1236
result:
ok 1 number(s): "1236"
Test #9:
score: 0
Accepted
time: 1ms
memory: 6188kb
input:
445 24337
output:
4546
result:
ok 1 number(s): "4546"
Test #10:
score: 0
Accepted
time: 9ms
memory: 14740kb
input:
28 586501
output:
269032
result:
ok 1 number(s): "269032"
Test #11:
score: 0
Accepted
time: 1ms
memory: 5812kb
input:
304 5
output:
0
result:
ok 1 number(s): "0"
Test #12:
score: 0
Accepted
time: 1ms
memory: 5932kb
input:
7158 41
output:
16
result:
ok 1 number(s): "16"
Test #13:
score: 0
Accepted
time: 1ms
memory: 6000kb
input:
8487 331
output:
148
result:
ok 1 number(s): "148"
Test #14:
score: 0
Accepted
time: 1ms
memory: 5992kb
input:
501 6763
output:
363
result:
ok 1 number(s): "363"
Test #15:
score: 0
Accepted
time: 2ms
memory: 6348kb
input:
3011 61129
output:
49319
result:
ok 1 number(s): "49319"
Test #16:
score: 0
Accepted
time: 7ms
memory: 14360kb
input:
7266 358159
output:
7643
result:
ok 1 number(s): "7643"
Test #17:
score: 0
Accepted
time: 1ms
memory: 5848kb
input:
360860 7
output:
1
result:
ok 1 number(s): "1"
Test #18:
score: 0
Accepted
time: 1ms
memory: 5808kb
input:
154939 19
output:
8
result:
ok 1 number(s): "8"
Test #19:
score: 0
Accepted
time: 1ms
memory: 5848kb
input:
813268 47
output:
40
result:
ok 1 number(s): "40"
Test #20:
score: 0
Accepted
time: 1ms
memory: 5872kb
input:
965601 1531
output:
1147
result:
ok 1 number(s): "1147"
Test #21:
score: 0
Accepted
time: 2ms
memory: 6416kb
input:
689332 78079
output:
17208
result:
ok 1 number(s): "17208"
Test #22:
score: 0
Accepted
time: 1ms
memory: 6196kb
input:
287719 34369
output:
15373
result:
ok 1 number(s): "15373"
Test #23:
score: 0
Accepted
time: 1ms
memory: 5924kb
input:
439237583 7
output:
6
result:
ok 1 number(s): "6"
Test #24:
score: 0
Accepted
time: 1ms
memory: 5908kb
input:
319142531 79
output:
21
result:
ok 1 number(s): "21"
Test #25:
score: 0
Accepted
time: 1ms
memory: 6004kb
input:
592330255 631
output:
530
result:
ok 1 number(s): "530"
Test #26:
score: 0
Accepted
time: 1ms
memory: 5892kb
input:
164278463 4517
output:
3038
result:
ok 1 number(s): "3038"
Test #27:
score: 0
Accepted
time: 2ms
memory: 8432kb
input:
753671285 65371
output:
22369
result:
ok 1 number(s): "22369"
Test #28:
score: 0
Accepted
time: 8ms
memory: 18120kb
input:
289665297 663127
output:
168503
result:
ok 1 number(s): "168503"
Test #29:
score: 0
Accepted
time: 1ms
memory: 5936kb
input:
350585676619 7
output:
5
result:
ok 1 number(s): "5"
Test #30:
score: 0
Accepted
time: 1ms
memory: 5908kb
input:
4283693890775 31
output:
1
result:
ok 1 number(s): "1"
Test #31:
score: 0
Accepted
time: 1ms
memory: 5996kb
input:
1234727503131 151
output:
67
result:
ok 1 number(s): "67"
Test #32:
score: 0
Accepted
time: 1ms
memory: 5932kb
input:
9399186742989 1327
output:
678
result:
ok 1 number(s): "678"
Test #33:
score: 0
Accepted
time: 1ms
memory: 6004kb
input:
1409645481800 8719
output:
1939
result:
ok 1 number(s): "1939"
Test #34:
score: 0
Accepted
time: 12ms
memory: 16076kb
input:
3782178721166 552859
output:
458256
result:
ok 1 number(s): "458256"
Test #35:
score: 0
Accepted
time: 1ms
memory: 6000kb
input:
827235816874722972 5
output:
2
result:
ok 1 number(s): "2"
Test #36:
score: 0
Accepted
time: 1ms
memory: 6004kb
input:
648249960855836992 61
output:
56
result:
ok 1 number(s): "56"
Test #37:
score: 0
Accepted
time: 1ms
memory: 5924kb
input:
467138518199434341 563
output:
202
result:
ok 1 number(s): "202"
Test #38:
score: 0
Accepted
time: 1ms
memory: 5936kb
input:
616207494477524619 653
output:
95
result:
ok 1 number(s): "95"
Test #39:
score: 0
Accepted
time: 2ms
memory: 8224kb
input:
129689263663821851 34403
output:
30422
result:
ok 1 number(s): "30422"
Test #40:
score: 0
Accepted
time: 11ms
memory: 13572kb
input:
605206340470214709 479971
output:
381982
result:
ok 1 number(s): "381982"