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 |
|---|---|---|---|---|---|---|---|---|---|
| #179872 | #5681. Caravan Trip Plans | Clouds | AC ✓ | 1ms | 9828kb | C++14 | 716b | 2023-09-15 11:35:35 | 2023-09-15 11:35:35 |
Judging History
answer
#include<bits/stdc++.h>
#define endl '\n'
#define int long long
using namespace std;
const int N=1e6+10,M=1010;
int n,m;
int C[M][M];
int a[N],b[N];
void init()
{
for(int i=0;i<=100;i++)
{
C[i][1]=i;
C[i][i]=1;
for(int j=2;j<=i-1;j++)
{
C[i][j]=(C[i-1][j-1]+C[i-1][j]);
}
}
}
signed main()
{
cin>>n>>m;
init();
for(int i=1;i<=n;i++)
{
cin>>a[i];
b[a[i]]=i;
}
for(int i=1;i<=m;i++)
{
int x,y;
cin>>x>>y;
int mm=b[a[x]]+1;
int nn=y-a[x];
cout<<C[mm+nn-1][nn]<<endl;
}
}
/*
8 3
2 3 5 7 11 13 17 19
3 7
5 15
8 24
*/
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 9756kb
input:
5 1 2 3 5 7 11 3 7
output:
10
result:
ok single line: '10'
Test #2:
score: 0
Accepted
time: 1ms
memory: 7696kb
input:
8 3 2 3 5 7 11 13 17 19 3 7 5 15 8 24
output:
10 126 1287
result:
ok 3 lines
Test #3:
score: 0
Accepted
time: 1ms
memory: 9764kb
input:
15 5 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 7 23 10 35 4 14 5 23 15 56
output:
1716 8008 330 6188 1307504
result:
ok 5 lines
Test #4:
score: 0
Accepted
time: 1ms
memory: 7760kb
input:
20 5 3 5 8 10 13 15 18 20 23 25 28 30 33 35 38 40 43 45 48 50 5 23 7 25 13 39 16 50 20 59
output:
3003 3432 27132 5311735 10015005
result:
ok 5 lines
Test #5:
score: 0
Accepted
time: 1ms
memory: 7796kb
input:
20 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 7 10 3 7 15 20 20 25 11 18
output:
120 35 15504 53130 31824
result:
ok 5 lines
Test #6:
score: 0
Accepted
time: 1ms
memory: 9692kb
input:
20 5 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 5 15 12 29 8 19 15 40 20 50
output:
252 6188 165 3268760 30045015
result:
ok 5 lines
Test #7:
score: 0
Accepted
time: 1ms
memory: 7708kb
input:
20 5 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 20 60 19 60 18 60 17 60 16 60
output:
137846528820 244662670200 353697121050 421171648758 416714805914
result:
ok 5 lines
Test #8:
score: 0
Accepted
time: 0ms
memory: 7708kb
input:
20 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 40 20 60 19 60 18 60 17 60 16 60
output:
137846528820 2044802197953900 925029565741050 387221678682300 149608375854525
result:
ok 5 lines
Test #9:
score: 0
Accepted
time: 1ms
memory: 9828kb
input:
12 5 2 3 5 7 11 13 17 19 23 29 31 37 2 60 5 60 7 60 9 60 11 60
output:
1711 3162510 99884400 1101716330 2311801440
result:
ok 5 lines
Test #10:
score: 0
Accepted
time: 1ms
memory: 9684kb
input:
17 5 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 12 60 15 60 17 60 13 60 16 60
output:
834451800 37442160 18 347373600 245157
result:
ok 5 lines
Test #11:
score: 0
Accepted
time: 0ms
memory: 9816kb
input:
20 5 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 3 60 5 60 7 60 13 60 16 60
output:
17296 1370754 38320568 5414950296 4059928950
result:
ok 5 lines
Test #12:
score: 0
Accepted
time: 0ms
memory: 7712kb
input:
20 5 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 3 20 5 30 7 40 13 50 16 60
output:
56 4368 346104 37442160 4059928950
result:
ok 5 lines