#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N = 1e6+10;
int pai[N];
int res[N];
const int mod = 1e6 + 3;
int binpow(int a, int b, int m){
if(b == 0) return 1;
int t = binpow(a, b/2, m);
if(b % 2 == 0) return (t*t) % m;
return (((t*t) % m )*a) % m;
}
int fat(int x){
if(x < 0) return 0;
if(x == 0) return 1;
return (fat(x-1)*x) % mod;
}
int choose(int a, int b){
swap(a, b);
return ((fat(a) % mod)*binpow((fat(b)*fat(a-b)) % mod, mod-2, mod)) % mod;
}
int32_t main(){
int n, k;
cin >> n >> k;
vector <int> v;
for(int i = 1;i <= n-k+1;i++){
int x;
cin >> x;
v.push_back(x);
}
for(int i = 1;i < v.size();i++){
pai[i] = v[i]-v[i-1];
//cout << pai[i] << ' ';
}
// cout << '\n';
int cnt = 0;
int val = v[0];
for(int i = 1;i <= k;i++){
int at = i;
res[i] = -1;
while(at < n){
if(pai[at] == 0){
at += k;
}
else{
if(pai[at] == -1){
res[i] = 1;
break;
}
else{
res[i] = 0;
break;
}
}
}
if(res[i] == -1) cnt++;
else val -= res[i];
}
// cout << val << endl;
if(val < 0){
cout << 0 << endl;
return 0;
}
int resposta = choose(val, cnt);
for(int i = 1;i <= k;i++){
if(res[i] == -1 and val > 0){
val--;
res[i] = 1;
}
else if(val == 0 and res[i] == -1) res[i] = 0;
}
int pref = 0;
for(int i = 1;i <= k;i++){
pref += res[i];
// cout << res[i] << ' ';
}
if(pref != v[0]){
cout << 0 << endl;
return 0;
}
for(int i = k+1;i <= n;i++){
res[i] = v[i-k] - (pref-res[i-k]);
pref -= res[i-k];
pref += res[i];
if(res[i] != 0 and res[i] != 1){
cout << 0 << endl;
return 0;
}
}
cout << resposta << '\n';
}
Compilation message
Main.cpp: In function 'int32_t main()':
Main.cpp:38:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
38 | for(int i = 1;i < v.size();i++){
| ~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
0 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
2396 KB |
Output is correct |
20 |
Correct |
0 ms |
2396 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
0 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
2396 KB |
Output is correct |
20 |
Correct |
0 ms |
2396 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
22 |
Correct |
0 ms |
2396 KB |
Output is correct |
23 |
Correct |
0 ms |
2396 KB |
Output is correct |
24 |
Correct |
0 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
0 ms |
2492 KB |
Output is correct |
27 |
Correct |
0 ms |
2492 KB |
Output is correct |
28 |
Correct |
0 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2392 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |
34 |
Correct |
0 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
0 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
2396 KB |
Output is correct |
20 |
Correct |
0 ms |
2396 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
22 |
Correct |
0 ms |
2396 KB |
Output is correct |
23 |
Correct |
0 ms |
2396 KB |
Output is correct |
24 |
Correct |
0 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
0 ms |
2492 KB |
Output is correct |
27 |
Correct |
0 ms |
2492 KB |
Output is correct |
28 |
Correct |
0 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2392 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |
34 |
Correct |
0 ms |
2396 KB |
Output is correct |
35 |
Correct |
81 ms |
26032 KB |
Output is correct |
36 |
Correct |
91 ms |
26540 KB |
Output is correct |
37 |
Correct |
90 ms |
26800 KB |
Output is correct |
38 |
Correct |
90 ms |
26852 KB |
Output is correct |
39 |
Correct |
82 ms |
25772 KB |
Output is correct |
40 |
Correct |
99 ms |
27248 KB |
Output is correct |
41 |
Correct |
157 ms |
26800 KB |
Output is correct |
42 |
Correct |
78 ms |
25872 KB |
Output is correct |
43 |
Correct |
74 ms |
25772 KB |
Output is correct |
44 |
Correct |
74 ms |
25772 KB |
Output is correct |
45 |
Correct |
116 ms |
25776 KB |
Output is correct |
46 |
Correct |
107 ms |
25944 KB |
Output is correct |
47 |
Correct |
72 ms |
26152 KB |
Output is correct |
48 |
Correct |
104 ms |
26804 KB |
Output is correct |
49 |
Correct |
90 ms |
26800 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
0 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
2396 KB |
Output is correct |
20 |
Correct |
0 ms |
2396 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
22 |
Correct |
0 ms |
2396 KB |
Output is correct |
23 |
Correct |
0 ms |
2396 KB |
Output is correct |
24 |
Correct |
0 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
0 ms |
2492 KB |
Output is correct |
27 |
Correct |
0 ms |
2492 KB |
Output is correct |
28 |
Correct |
0 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2392 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |
34 |
Correct |
0 ms |
2396 KB |
Output is correct |
35 |
Correct |
81 ms |
26032 KB |
Output is correct |
36 |
Correct |
91 ms |
26540 KB |
Output is correct |
37 |
Correct |
90 ms |
26800 KB |
Output is correct |
38 |
Correct |
90 ms |
26852 KB |
Output is correct |
39 |
Correct |
82 ms |
25772 KB |
Output is correct |
40 |
Correct |
99 ms |
27248 KB |
Output is correct |
41 |
Correct |
157 ms |
26800 KB |
Output is correct |
42 |
Correct |
78 ms |
25872 KB |
Output is correct |
43 |
Correct |
74 ms |
25772 KB |
Output is correct |
44 |
Correct |
74 ms |
25772 KB |
Output is correct |
45 |
Correct |
116 ms |
25776 KB |
Output is correct |
46 |
Correct |
107 ms |
25944 KB |
Output is correct |
47 |
Correct |
72 ms |
26152 KB |
Output is correct |
48 |
Correct |
104 ms |
26804 KB |
Output is correct |
49 |
Correct |
90 ms |
26800 KB |
Output is correct |
50 |
Correct |
148 ms |
28664 KB |
Output is correct |
51 |
Correct |
129 ms |
28848 KB |
Output is correct |
52 |
Correct |
122 ms |
28844 KB |
Output is correct |
53 |
Correct |
138 ms |
28844 KB |
Output is correct |
54 |
Correct |
120 ms |
28848 KB |
Output is correct |
55 |
Correct |
122 ms |
28848 KB |
Output is correct |
56 |
Correct |
129 ms |
28848 KB |
Output is correct |
57 |
Correct |
103 ms |
27844 KB |
Output is correct |
58 |
Correct |
125 ms |
28688 KB |
Output is correct |
59 |
Correct |
119 ms |
28848 KB |
Output is correct |
60 |
Correct |
156 ms |
27696 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
2392 KB |
Output is correct |
4 |
Correct |
0 ms |
2492 KB |
Output is correct |
5 |
Correct |
0 ms |
2396 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
0 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
0 ms |
2396 KB |
Output is correct |
10 |
Correct |
0 ms |
2396 KB |
Output is correct |
11 |
Correct |
0 ms |
2396 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
2396 KB |
Output is correct |
16 |
Correct |
0 ms |
2396 KB |
Output is correct |
17 |
Correct |
0 ms |
2396 KB |
Output is correct |
18 |
Correct |
0 ms |
2396 KB |
Output is correct |
19 |
Correct |
0 ms |
2396 KB |
Output is correct |
20 |
Correct |
0 ms |
2396 KB |
Output is correct |
21 |
Correct |
0 ms |
2396 KB |
Output is correct |
22 |
Correct |
0 ms |
2396 KB |
Output is correct |
23 |
Correct |
0 ms |
2396 KB |
Output is correct |
24 |
Correct |
0 ms |
2396 KB |
Output is correct |
25 |
Correct |
1 ms |
2396 KB |
Output is correct |
26 |
Correct |
0 ms |
2492 KB |
Output is correct |
27 |
Correct |
0 ms |
2492 KB |
Output is correct |
28 |
Correct |
0 ms |
2396 KB |
Output is correct |
29 |
Correct |
1 ms |
2396 KB |
Output is correct |
30 |
Correct |
1 ms |
2396 KB |
Output is correct |
31 |
Correct |
1 ms |
2396 KB |
Output is correct |
32 |
Correct |
1 ms |
2392 KB |
Output is correct |
33 |
Correct |
0 ms |
2396 KB |
Output is correct |
34 |
Correct |
0 ms |
2396 KB |
Output is correct |
35 |
Correct |
81 ms |
26032 KB |
Output is correct |
36 |
Correct |
91 ms |
26540 KB |
Output is correct |
37 |
Correct |
90 ms |
26800 KB |
Output is correct |
38 |
Correct |
90 ms |
26852 KB |
Output is correct |
39 |
Correct |
82 ms |
25772 KB |
Output is correct |
40 |
Correct |
99 ms |
27248 KB |
Output is correct |
41 |
Correct |
157 ms |
26800 KB |
Output is correct |
42 |
Correct |
78 ms |
25872 KB |
Output is correct |
43 |
Correct |
74 ms |
25772 KB |
Output is correct |
44 |
Correct |
74 ms |
25772 KB |
Output is correct |
45 |
Correct |
116 ms |
25776 KB |
Output is correct |
46 |
Correct |
107 ms |
25944 KB |
Output is correct |
47 |
Correct |
72 ms |
26152 KB |
Output is correct |
48 |
Correct |
104 ms |
26804 KB |
Output is correct |
49 |
Correct |
90 ms |
26800 KB |
Output is correct |
50 |
Correct |
148 ms |
28664 KB |
Output is correct |
51 |
Correct |
129 ms |
28848 KB |
Output is correct |
52 |
Correct |
122 ms |
28844 KB |
Output is correct |
53 |
Correct |
138 ms |
28844 KB |
Output is correct |
54 |
Correct |
120 ms |
28848 KB |
Output is correct |
55 |
Correct |
122 ms |
28848 KB |
Output is correct |
56 |
Correct |
129 ms |
28848 KB |
Output is correct |
57 |
Correct |
103 ms |
27844 KB |
Output is correct |
58 |
Correct |
125 ms |
28688 KB |
Output is correct |
59 |
Correct |
119 ms |
28848 KB |
Output is correct |
60 |
Correct |
156 ms |
27696 KB |
Output is correct |
61 |
Correct |
17 ms |
18524 KB |
Output is correct |
62 |
Correct |
20 ms |
18616 KB |
Output is correct |
63 |
Correct |
17 ms |
19096 KB |
Output is correct |
64 |
Correct |
17 ms |
19268 KB |
Output is correct |
65 |
Correct |
87 ms |
25188 KB |
Output is correct |
66 |
Correct |
65 ms |
24244 KB |
Output is correct |
67 |
Correct |
129 ms |
28728 KB |
Output is correct |
68 |
Correct |
26 ms |
21452 KB |
Output is correct |
69 |
Correct |
17 ms |
18524 KB |
Output is correct |
70 |
Correct |
17 ms |
18524 KB |
Output is correct |
71 |
Correct |
16 ms |
19036 KB |
Output is correct |