답안 #20910 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20910	2017-03-19T15:19:19 Z	model_code	Rope (JOI17_rope)	C++14	100 / 100	843 ms	23508 KB

rope

#include <bits/stdc++.h>
using namespace std;

typedef pair<int,int> pi;

const int INF=5e8;
const int MAX_N=1000005;
int app[MAX_N];

int d[MAX_N],ans[MAX_N];
int N,C;

pi ps[500005];
int pscnt[500005];
void chmin(int& a,int b){
  a=min(a,b);
}

void solve(int n,int* ar,int L,int R){
  if(n&1) return;
  if(n==0){
    for(int i=0;i<C;++i) ans[i]=0;
    return;
  }

  int m=0;
  for(int i=0;i<n;i+=2){
    int a=ar[i],b=ar[i+1];
    if(a>b) swap(a,b);
    ps[m++]={a,b};
  }
  sort(ps,ps+m);
  m=unique(ps,ps+m)-ps;
  memset(pscnt,0,sizeof(pscnt));
  for(int i=0;i<n;i+=2){
    int a=ar[i],b=ar[i+1];
    if(a>b) swap(a,b);
    ++pscnt[lower_bound(ps,ps+m,make_pair(a,b))-ps];
  }
  for(int i=0;i<m;++i) {
    int a=ps[i].first,b=ps[i].second;
    if(a==b) continue;
    int val=N-(app[a]+app[b]-pscnt[i]);
    chmin(ans[a],val);
    chmin(ans[b],val);
  }
  for(int i=0;i<C;++i) d[i]=i;
  sort(d,d+C,[&](int a,int b){
    return app[a]>app[b];
  });
  for(int i=0;i<C;++i) {
    int j;
    for(j=0;(i==j) || (j<C && binary_search(ps,ps+m,make_pair(min(d[i],d[j]),max(d[j],d[i]))));++j);
    if(j<C){
      int val=N-(app[d[i]]+app[d[j]]);
      chmin(ans[d[i]],val);
      chmin(ans[d[j]],val);
    }
  }
}
int n;
int ar[MAX_N];

int main(){
  cin>>n>>C;
  if(C==1){
    puts("0");
    return 0;
  }
  for(int i=0;i<n;++i) scanf("%d",&ar[i]),--ar[i];
  for(int i=0;i<C;++i) ans[i]=INF;

  for(int i=0;i<n;++i) app[ar[i]]++;
  N=n;
  solve(n,ar,-1,-1);
  solve(n-1,ar+1,ar[0],-1);
  solve(n-1,ar,-1,ar[n-1]);
  solve(n-2,ar+1,ar[0],ar[n-1]);
  for(int i=0;i<C;++i) printf("%d\n",ans[i]);
  return 0;
}

Compilation message

rope.cpp: In function 'int main()':
rope.cpp:70:50: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for(int i=0;i<n;++i) scanf("%d",&ar[i]),--ar[i];
                                                  ^

Subtask #1
15.0 / 15.0

#	결과	메모리	Grader output
1	Correct	23508 KB	Output is correct
2	Correct	23508 KB	Output is correct
3	Correct	23508 KB	Output is correct
4	Correct	23508 KB	Output is correct
5	Correct	23508 KB	Output is correct
6	Correct	23508 KB	Output is correct
7	Correct	23508 KB	Output is correct
8	Correct	23508 KB	Output is correct
9	Correct	23508 KB	Output is correct
10	Correct	23508 KB	Output is correct
11	Correct	23508 KB	Output is correct
12	Correct	23508 KB	Output is correct
13	Correct	23508 KB	Output is correct
14	Correct	23508 KB	Output is correct
15	Correct	23508 KB	Output is correct
16	Correct	23508 KB	Output is correct
17	Correct	23508 KB	Output is correct
18	Correct	23508 KB	Output is correct
19	Correct	23508 KB	Output is correct
20	Correct	23508 KB	Output is correct
21	Correct	23508 KB	Output is correct
22	Correct	23508 KB	Output is correct
23	Correct	23508 KB	Output is correct
24	Correct	23508 KB	Output is correct
25	Correct	23508 KB	Output is correct
26	Correct	23508 KB	Output is correct

Subtask #2
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	23508 KB	Output is correct
2	Correct	0 ms	23508 KB	Output is correct
3	Correct	0 ms	23508 KB	Output is correct
4	Correct	0 ms	23508 KB	Output is correct
5	Correct	0 ms	23508 KB	Output is correct
6	Correct	0 ms	23508 KB	Output is correct
7	Correct	0 ms	23508 KB	Output is correct
8	Correct	0 ms	23508 KB	Output is correct
9	Correct	0 ms	23508 KB	Output is correct
10	Correct	0 ms	23508 KB	Output is correct
11	Correct	0 ms	23508 KB	Output is correct
12	Correct	0 ms	23508 KB	Output is correct
13	Correct	0 ms	23508 KB	Output is correct
14	Correct	0 ms	23508 KB	Output is correct
15	Correct	0 ms	23508 KB	Output is correct
16	Correct	0 ms	23508 KB	Output is correct
17	Correct	0 ms	23508 KB	Output is correct
18	Correct	0 ms	23508 KB	Output is correct
19	Correct	0 ms	23508 KB	Output is correct
20	Correct	0 ms	23508 KB	Output is correct
21	Correct	0 ms	23508 KB	Output is correct
22	Correct	0 ms	23508 KB	Output is correct
23	Correct	0 ms	23508 KB	Output is correct
24	Correct	0 ms	23508 KB	Output is correct
25	Correct	0 ms	23508 KB	Output is correct
26	Correct	0 ms	23508 KB	Output is correct
27	Correct	16 ms	23508 KB	Output is correct
28	Correct	23 ms	23508 KB	Output is correct
29	Correct	23 ms	23508 KB	Output is correct
30	Correct	16 ms	23508 KB	Output is correct
31	Correct	23 ms	23508 KB	Output is correct
32	Correct	16 ms	23508 KB	Output is correct
33	Correct	16 ms	23508 KB	Output is correct
34	Correct	19 ms	23508 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	23508 KB	Output is correct
2	Correct	0 ms	23508 KB	Output is correct
3	Correct	0 ms	23508 KB	Output is correct
4	Correct	0 ms	23508 KB	Output is correct
5	Correct	0 ms	23508 KB	Output is correct
6	Correct	0 ms	23508 KB	Output is correct
7	Correct	0 ms	23508 KB	Output is correct
8	Correct	0 ms	23508 KB	Output is correct
9	Correct	0 ms	23508 KB	Output is correct
10	Correct	0 ms	23508 KB	Output is correct
11	Correct	0 ms	23508 KB	Output is correct
12	Correct	0 ms	23508 KB	Output is correct
13	Correct	0 ms	23508 KB	Output is correct
14	Correct	0 ms	23508 KB	Output is correct
15	Correct	0 ms	23508 KB	Output is correct
16	Correct	0 ms	23508 KB	Output is correct
17	Correct	0 ms	23508 KB	Output is correct
18	Correct	0 ms	23508 KB	Output is correct
19	Correct	0 ms	23508 KB	Output is correct
20	Correct	0 ms	23508 KB	Output is correct
21	Correct	0 ms	23508 KB	Output is correct
22	Correct	0 ms	23508 KB	Output is correct
23	Correct	0 ms	23508 KB	Output is correct
24	Correct	0 ms	23508 KB	Output is correct
25	Correct	0 ms	23508 KB	Output is correct
26	Correct	0 ms	23508 KB	Output is correct
27	Correct	16 ms	23508 KB	Output is correct
28	Correct	23 ms	23508 KB	Output is correct
29	Correct	23 ms	23508 KB	Output is correct
30	Correct	16 ms	23508 KB	Output is correct
31	Correct	23 ms	23508 KB	Output is correct
32	Correct	16 ms	23508 KB	Output is correct
33	Correct	16 ms	23508 KB	Output is correct
34	Correct	19 ms	23508 KB	Output is correct
35	Correct	39 ms	23508 KB	Output is correct
36	Correct	39 ms	23508 KB	Output is correct
37	Correct	39 ms	23508 KB	Output is correct
38	Correct	39 ms	23508 KB	Output is correct
39	Correct	36 ms	23508 KB	Output is correct
40	Correct	33 ms	23508 KB	Output is correct
41	Correct	33 ms	23508 KB	Output is correct
42	Correct	33 ms	23508 KB	Output is correct
43	Correct	33 ms	23508 KB	Output is correct
44	Correct	36 ms	23508 KB	Output is correct
45	Correct	46 ms	23508 KB	Output is correct
46	Correct	36 ms	23508 KB	Output is correct
47	Correct	46 ms	23508 KB	Output is correct

Subtask #4
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	23508 KB	Output is correct
2	Correct	0 ms	23508 KB	Output is correct
3	Correct	0 ms	23508 KB	Output is correct
4	Correct	0 ms	23508 KB	Output is correct
5	Correct	0 ms	23508 KB	Output is correct
6	Correct	0 ms	23508 KB	Output is correct
7	Correct	0 ms	23508 KB	Output is correct
8	Correct	0 ms	23508 KB	Output is correct
9	Correct	0 ms	23508 KB	Output is correct
10	Correct	0 ms	23508 KB	Output is correct
11	Correct	0 ms	23508 KB	Output is correct
12	Correct	0 ms	23508 KB	Output is correct
13	Correct	0 ms	23508 KB	Output is correct
14	Correct	0 ms	23508 KB	Output is correct
15	Correct	0 ms	23508 KB	Output is correct
16	Correct	0 ms	23508 KB	Output is correct
17	Correct	0 ms	23508 KB	Output is correct
18	Correct	0 ms	23508 KB	Output is correct
19	Correct	0 ms	23508 KB	Output is correct
20	Correct	0 ms	23508 KB	Output is correct
21	Correct	0 ms	23508 KB	Output is correct
22	Correct	0 ms	23508 KB	Output is correct
23	Correct	0 ms	23508 KB	Output is correct
24	Correct	0 ms	23508 KB	Output is correct
25	Correct	0 ms	23508 KB	Output is correct
26	Correct	0 ms	23508 KB	Output is correct
27	Correct	16 ms	23508 KB	Output is correct
28	Correct	23 ms	23508 KB	Output is correct
29	Correct	23 ms	23508 KB	Output is correct
30	Correct	16 ms	23508 KB	Output is correct
31	Correct	23 ms	23508 KB	Output is correct
32	Correct	16 ms	23508 KB	Output is correct
33	Correct	16 ms	23508 KB	Output is correct
34	Correct	19 ms	23508 KB	Output is correct
35	Correct	39 ms	23508 KB	Output is correct
36	Correct	39 ms	23508 KB	Output is correct
37	Correct	39 ms	23508 KB	Output is correct
38	Correct	39 ms	23508 KB	Output is correct
39	Correct	36 ms	23508 KB	Output is correct
40	Correct	33 ms	23508 KB	Output is correct
41	Correct	33 ms	23508 KB	Output is correct
42	Correct	33 ms	23508 KB	Output is correct
43	Correct	33 ms	23508 KB	Output is correct
44	Correct	36 ms	23508 KB	Output is correct
45	Correct	46 ms	23508 KB	Output is correct
46	Correct	36 ms	23508 KB	Output is correct
47	Correct	46 ms	23508 KB	Output is correct
48	Correct	526 ms	23508 KB	Output is correct
49	Correct	579 ms	23508 KB	Output is correct
50	Correct	523 ms	23508 KB	Output is correct
51	Correct	506 ms	23508 KB	Output is correct
52	Correct	489 ms	23508 KB	Output is correct
53	Correct	473 ms	23508 KB	Output is correct
54	Correct	453 ms	23508 KB	Output is correct
55	Correct	439 ms	23508 KB	Output is correct
56	Correct	466 ms	23508 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	23508 KB	Output is correct
2	Correct	0 ms	23508 KB	Output is correct
3	Correct	0 ms	23508 KB	Output is correct
4	Correct	0 ms	23508 KB	Output is correct
5	Correct	0 ms	23508 KB	Output is correct
6	Correct	0 ms	23508 KB	Output is correct
7	Correct	0 ms	23508 KB	Output is correct
8	Correct	0 ms	23508 KB	Output is correct
9	Correct	0 ms	23508 KB	Output is correct
10	Correct	0 ms	23508 KB	Output is correct
11	Correct	0 ms	23508 KB	Output is correct
12	Correct	0 ms	23508 KB	Output is correct
13	Correct	0 ms	23508 KB	Output is correct
14	Correct	0 ms	23508 KB	Output is correct
15	Correct	0 ms	23508 KB	Output is correct
16	Correct	0 ms	23508 KB	Output is correct
17	Correct	0 ms	23508 KB	Output is correct
18	Correct	0 ms	23508 KB	Output is correct
19	Correct	0 ms	23508 KB	Output is correct
20	Correct	0 ms	23508 KB	Output is correct
21	Correct	0 ms	23508 KB	Output is correct
22	Correct	0 ms	23508 KB	Output is correct
23	Correct	0 ms	23508 KB	Output is correct
24	Correct	0 ms	23508 KB	Output is correct
25	Correct	0 ms	23508 KB	Output is correct
26	Correct	0 ms	23508 KB	Output is correct
27	Correct	16 ms	23508 KB	Output is correct
28	Correct	23 ms	23508 KB	Output is correct
29	Correct	23 ms	23508 KB	Output is correct
30	Correct	16 ms	23508 KB	Output is correct
31	Correct	23 ms	23508 KB	Output is correct
32	Correct	16 ms	23508 KB	Output is correct
33	Correct	16 ms	23508 KB	Output is correct
34	Correct	19 ms	23508 KB	Output is correct
35	Correct	39 ms	23508 KB	Output is correct
36	Correct	39 ms	23508 KB	Output is correct
37	Correct	39 ms	23508 KB	Output is correct
38	Correct	39 ms	23508 KB	Output is correct
39	Correct	36 ms	23508 KB	Output is correct
40	Correct	33 ms	23508 KB	Output is correct
41	Correct	33 ms	23508 KB	Output is correct
42	Correct	33 ms	23508 KB	Output is correct
43	Correct	33 ms	23508 KB	Output is correct
44	Correct	36 ms	23508 KB	Output is correct
45	Correct	46 ms	23508 KB	Output is correct
46	Correct	36 ms	23508 KB	Output is correct
47	Correct	46 ms	23508 KB	Output is correct
48	Correct	526 ms	23508 KB	Output is correct
49	Correct	579 ms	23508 KB	Output is correct
50	Correct	523 ms	23508 KB	Output is correct
51	Correct	506 ms	23508 KB	Output is correct
52	Correct	489 ms	23508 KB	Output is correct
53	Correct	473 ms	23508 KB	Output is correct
54	Correct	453 ms	23508 KB	Output is correct
55	Correct	439 ms	23508 KB	Output is correct
56	Correct	466 ms	23508 KB	Output is correct
57	Correct	843 ms	23508 KB	Output is correct
58	Correct	756 ms	23508 KB	Output is correct
59	Correct	759 ms	23508 KB	Output is correct
60	Correct	769 ms	23508 KB	Output is correct
61	Correct	773 ms	23508 KB	Output is correct
62	Correct	579 ms	23508 KB	Output is correct
63	Correct	599 ms	23508 KB	Output is correct
64	Correct	609 ms	23508 KB	Output is correct
65	Correct	533 ms	23508 KB	Output is correct

답안 #20910

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 30.0 / 30.0

Subtask #3 10.0 / 10.0

Subtask #4 25.0 / 25.0

Subtask #5 20.0 / 20.0

Subtask #1
15.0 / 15.0

Subtask #2
30.0 / 30.0

Subtask #3
10.0 / 10.0

Subtask #4
25.0 / 25.0

Subtask #5
20.0 / 20.0