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 |
|---|---|---|---|---|---|---|---|---|---|
| #20445 | #2601. Lucky Tickets | Appleblue17# | AC ✓ | 348ms | 3712kb | C++17 | 460b | 2022-02-16 10:06:25 | 2022-05-03 09:56:05 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const long long N=1e6+5;
long long p,n,s,sum,ans;
long long ksm(long long a,long long x,long long mod){
long long tot=1;
while(x){
if(x & 1) tot=1ll*tot*a%mod;
a=1ll*a*a%mod;
x>>=1;
}
return tot;
}
int main(){
cin>>n>>s>>p;
for(long long i=0,x=1;i<p;i++,x=x*2%p)
sum=(sum+x)%p;
for(long long i=0;i<n;i++){
if((ksm(i,p,n)+i*p%n)%n==s) ans=(ans+1ll*sum*i%p)%p;
}
cout<<ans;
}
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 3444kb
input:
2 0 2
output:
0
result:
ok 1 number(s): "0"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3560kb
input:
10 9 2
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3644kb
input:
3 2 3
output:
2
result:
ok 1 number(s): "2"
Test #4:
score: 0
Accepted
time: 3ms
memory: 3532kb
input:
2 1 2
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3564kb
input:
4 0 3
output:
1
result:
ok 1 number(s): "1"
Test #6:
score: 0
Accepted
time: 2ms
memory: 3560kb
input:
4 2 3
output:
2
result:
ok 1 number(s): "2"
Test #7:
score: 0
Accepted
time: 2ms
memory: 3556kb
input:
20 4 19
output:
5
result:
ok 1 number(s): "5"
Test #8:
score: 0
Accepted
time: 3ms
memory: 3644kb
input:
30 2 37
output:
23
result:
ok 1 number(s): "23"
Test #9:
score: 0
Accepted
time: 2ms
memory: 3660kb
input:
87 22 67
output:
0
result:
ok 1 number(s): "0"
Test #10:
score: 0
Accepted
time: 3ms
memory: 3532kb
input:
829 135 857
output:
803
result:
ok 1 number(s): "803"
Test #11:
score: 0
Accepted
time: 5ms
memory: 3576kb
input:
6120 2790 9851
output:
4622
result:
ok 1 number(s): "4622"
Test #12:
score: 0
Accepted
time: 23ms
memory: 3552kb
input:
77263 13087 50147
output:
26904
result:
ok 1 number(s): "26904"
Test #13:
score: 0
Accepted
time: 230ms
memory: 3712kb
input:
682298 437284 638801
output:
10038
result:
ok 1 number(s): "10038"
Test #14:
score: 0
Accepted
time: 263ms
memory: 3592kb
input:
823965 703789 575623
output:
483248
result:
ok 1 number(s): "483248"
Test #15:
score: 0
Accepted
time: 332ms
memory: 3712kb
input:
1000000 394496 999983
output:
755554
result:
ok 1 number(s): "755554"
Test #16:
score: 0
Accepted
time: 321ms
memory: 3516kb
input:
1000000 24900 999451
output:
996185
result:
ok 1 number(s): "996185"
Test #17:
score: 0
Accepted
time: 338ms
memory: 3516kb
input:
999750 14190 999671
output:
191073
result:
ok 1 number(s): "191073"
Test #18:
score: 0
Accepted
time: 324ms
memory: 3532kb
input:
946312 10286 997741
output:
744939
result:
ok 1 number(s): "744939"
Test #19:
score: 0
Accepted
time: 343ms
memory: 3564kb
input:
997742 0 997741
output:
565729
result:
ok 1 number(s): "565729"
Test #20:
score: 0
Accepted
time: 348ms
memory: 3560kb
input:
977762 0 977761
output:
0
result:
ok 1 number(s): "0"