답안 #932849

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
932849	2024-02-24T10:07:52 Z	Son	Binaria (CCO23_day1problem1)	C++14	25 / 25	304 ms	21052 KB

Main

#include <bits/stdc++.h>
using namespace std;
#define LL long long
#define pb push_back
#define fi first
#define se second
#define mp make_pair

int n,k;
int A[1000005];
int fact[1000005], inv[1000005];
int mo = 1e6 + 3;
int B[1000005];

int expo( int a, int b ){
    if ( b == 0 ) return 1;
    int half = expo(a,b/2);
    half = ( 1LL * half * half ) % mo;
    if ( b & 1 ){
        half = ( 1LL * half * a ) % mo;
    }
    return half;
}

int C( int N, int K ){
    if ( K > N || K < 0 ) return 0;
    int ans = (fact[N] * 1LL * inv[K]) % mo;
    ans = ( ans * 1LL * inv[N-K] ) % mo;
    return ans; 
}

void fail(){
    printf("0\n");
    exit(0);
}

int main(){
    
    scanf("%d%d",&n,&k);
    for ( int i = 1; i <= n-k+1; i++ ){
        scanf("%d",&A[i]);
    }

    fact[0] = inv[0] = 1;
    for ( int i = 1; i <= n; i++ ){
        fact[i] = ( fact[i-1] * 1LL * i ) % mo;
        inv[i] = expo(fact[i], mo - 2) % mo;
        B[i] = 2;
    }

    for ( int i = n-k; i >= 1; i-- ){
        if ( abs(A[i] - A[i+1]) > 1 ){
            fail();
        }
        if ( A[i] > A[i+1] ){
            if ( B[i+k] == 1 ){
                fail();
            }
            B[i] = 1;
        } else if ( A[i] < A[i+1] ){
            if ( B[i+k] == 0 ){
                fail();
            }
            B[i] = 0;
        } else {
            B[i] = B[i+k];
        }
    }    
    
    int N = 0, K = A[1];
    for ( int i = 1; i <= k; i++ ){
        if ( B[i] == 1 ){
            K--;
        } 
        if ( B[i] == 2 ){
            N++;
        }
    }
    printf("%d\n",C(N,K));
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%d%d",&n,&k);
      |     ~~~~~^~~~~~~~~~~~~~
Main.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         scanf("%d",&A[i]);
      |         ~~~~~^~~~~~~~~~~~

Subtask #1
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	360 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	360 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6492 KB	Output is correct
30	Correct	2 ms	6492 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	344 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	360 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6492 KB	Output is correct
30	Correct	2 ms	6492 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	344 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	265 ms	17920 KB	Output is correct
36	Correct	276 ms	18660 KB	Output is correct
37	Correct	271 ms	18876 KB	Output is correct
38	Correct	264 ms	18764 KB	Output is correct
39	Correct	264 ms	18028 KB	Output is correct
40	Correct	264 ms	18768 KB	Output is correct
41	Correct	264 ms	18840 KB	Output is correct
42	Correct	260 ms	18024 KB	Output is correct
43	Correct	265 ms	18000 KB	Output is correct
44	Correct	268 ms	17964 KB	Output is correct
45	Correct	263 ms	18000 KB	Output is correct
46	Correct	262 ms	18004 KB	Output is correct
47	Correct	293 ms	18004 KB	Output is correct
48	Correct	266 ms	18880 KB	Output is correct
49	Correct	279 ms	19004 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	360 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6492 KB	Output is correct
30	Correct	2 ms	6492 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	344 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	265 ms	17920 KB	Output is correct
36	Correct	276 ms	18660 KB	Output is correct
37	Correct	271 ms	18876 KB	Output is correct
38	Correct	264 ms	18764 KB	Output is correct
39	Correct	264 ms	18028 KB	Output is correct
40	Correct	264 ms	18768 KB	Output is correct
41	Correct	264 ms	18840 KB	Output is correct
42	Correct	260 ms	18024 KB	Output is correct
43	Correct	265 ms	18000 KB	Output is correct
44	Correct	268 ms	17964 KB	Output is correct
45	Correct	263 ms	18000 KB	Output is correct
46	Correct	262 ms	18004 KB	Output is correct
47	Correct	293 ms	18004 KB	Output is correct
48	Correct	266 ms	18880 KB	Output is correct
49	Correct	279 ms	19004 KB	Output is correct
50	Correct	273 ms	20892 KB	Output is correct
51	Correct	275 ms	20816 KB	Output is correct
52	Correct	272 ms	20772 KB	Output is correct
53	Correct	288 ms	20800 KB	Output is correct
54	Correct	304 ms	21052 KB	Output is correct
55	Correct	279 ms	20728 KB	Output is correct
56	Correct	299 ms	20716 KB	Output is correct
57	Correct	268 ms	19792 KB	Output is correct
58	Correct	268 ms	20916 KB	Output is correct
59	Correct	272 ms	20716 KB	Output is correct
60	Correct	266 ms	19924 KB	Output is correct

Subtask #6
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6588 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	6488 KB	Output is correct
9	Correct	2 ms	6492 KB	Output is correct
10	Correct	1 ms	440 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	0 ms	360 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6492 KB	Output is correct
30	Correct	2 ms	6492 KB	Output is correct
31	Correct	1 ms	344 KB	Output is correct
32	Correct	1 ms	344 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	265 ms	17920 KB	Output is correct
36	Correct	276 ms	18660 KB	Output is correct
37	Correct	271 ms	18876 KB	Output is correct
38	Correct	264 ms	18764 KB	Output is correct
39	Correct	264 ms	18028 KB	Output is correct
40	Correct	264 ms	18768 KB	Output is correct
41	Correct	264 ms	18840 KB	Output is correct
42	Correct	260 ms	18024 KB	Output is correct
43	Correct	265 ms	18000 KB	Output is correct
44	Correct	268 ms	17964 KB	Output is correct
45	Correct	263 ms	18000 KB	Output is correct
46	Correct	262 ms	18004 KB	Output is correct
47	Correct	293 ms	18004 KB	Output is correct
48	Correct	266 ms	18880 KB	Output is correct
49	Correct	279 ms	19004 KB	Output is correct
50	Correct	273 ms	20892 KB	Output is correct
51	Correct	275 ms	20816 KB	Output is correct
52	Correct	272 ms	20772 KB	Output is correct
53	Correct	288 ms	20800 KB	Output is correct
54	Correct	304 ms	21052 KB	Output is correct
55	Correct	279 ms	20728 KB	Output is correct
56	Correct	299 ms	20716 KB	Output is correct
57	Correct	268 ms	19792 KB	Output is correct
58	Correct	268 ms	20916 KB	Output is correct
59	Correct	272 ms	20716 KB	Output is correct
60	Correct	266 ms	19924 KB	Output is correct
61	Correct	206 ms	12020 KB	Output is correct
62	Correct	208 ms	12908 KB	Output is correct
63	Correct	205 ms	12112 KB	Output is correct
64	Correct	209 ms	12908 KB	Output is correct
65	Correct	247 ms	17544 KB	Output is correct
66	Correct	230 ms	17328 KB	Output is correct
67	Correct	268 ms	20660 KB	Output is correct
68	Correct	211 ms	12908 KB	Output is correct
69	Correct	210 ms	12092 KB	Output is correct
70	Correct	207 ms	12912 KB	Output is correct
71	Correct	205 ms	11988 KB	Output is correct

답안 #932849

Compilation message

Subtask #1 3.0 / 3.0

Subtask #2 3.0 / 3.0

Subtask #3 4.0 / 4.0

Subtask #4 4.0 / 4.0

Subtask #5 4.0 / 4.0

Subtask #6 7.0 / 7.0

Subtask #1
3.0 / 3.0

Subtask #2
3.0 / 3.0

Subtask #3
4.0 / 4.0

Subtask #4
4.0 / 4.0

Subtask #5
4.0 / 4.0

Subtask #6
7.0 / 7.0