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답안 #292187

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292187 2020-09-06T13:35:53 Z Namnamseo Rope (JOI17_rope) C++17
80 / 100
 2500 ms 80352 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
#define all(x) (x).begin(),(x).end()
#define pb push_back

char *I;
int ri() {
	int ret = 0;
	while((*I<48 || *I>=58)) ++I;
	while(!(*I<48 || *I>=58)) ret=ret*10+(*I)-48,++I;
	return ret;
}
void read(int& x){ x = ri(); }
template<typename T,typename... Args>
void read(T& a,Args&... b){ read(a); read(b...); }

int n, m;
int col[1000010];

int ans[1000010];

vector<int> adj[1000010];
int self[1000010];

const int M=1048576;
int t[M<<1];

void upd(int p, int v){
	p+=M; t[p]+=v; p>>=1;
	while(p) t[p]=max(t[p*2], t[p*2+1]), p>>=1;
}

int rM(int l, int r){
	int ret=0;
	l+=M; r+=M;
	while(l<=r){
		if(l&1) ret=max(ret, t[l++]);
		if((r&1)==0) ret=max(ret, t[r--]);
		l>>=1; r>>=1;
	}
	return ret;
}

void Do(){
	for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
    
    for(int i=1; i<=n; i+=2){
		if(i+1 <= n){
			int a=col[i], b=col[i+1];
			if(a == b){
				++self[a];
				upd(a, 2);
				continue;
			}
			adj[a].pb(b); adj[b].pb(a);
			upd(a, 1); upd(b, 1);
		} else upd(col[i], 1);
    }
    
    for(int i=1; i<=m; ++i){
		for(int x:adj[i]) upd(x, -1);
		int jib=rM(i, i); upd(i, -jib);
		ans[i]=min(ans[i],
			n-rM(1, m)-jib
		);
		for(int x:adj[i]) upd(x, 1);
		upd(i, jib);
    }
}

void Do2(){
	for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
    
    upd(col[1], 1);
    for(int i=2; i<=n; i+=2){
		if(i+1 <= n){
			int a=col[i], b=col[i+1];
			if(a == b){
				++self[a];
				upd(a, 2);
				continue;
			}
			adj[a].pb(b); adj[b].pb(a);
			upd(a, 1); upd(b, 1);
		} else upd(col[i], 1);
    }
    
    for(int i=1; i<=m; ++i){
		for(int x:adj[i]) upd(x, -1);
		int jib=rM(i, i); upd(i, -jib);
		ans[i]=min(ans[i],
			n-rM(1, m)-jib
		);
		for(int x:adj[i]) upd(x, 1);
		upd(i, jib);
    }
}

#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>

int main()
{
	{ struct stat Z; fstat(0, &Z); I=(char*)mmap(0,Z.st_size,1,2,0,0); }
    read(n, m);
    for(int i=1; i<=n; ++i) read(col[i]);
    fill(ans+1, ans+m+1, n+1);
    Do(); Do2();
    reverse(col+1, col+n+1);
    Do(); Do2();
    for(int i=1; i<=m; ++i) printf("%d\n", ans[i]);
    return 0;
}

Compilation message

rope.cpp: In function 'void Do()':
rope.cpp:47:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   47 |  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
      |  ^~~
rope.cpp:47:30: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   47 |  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
      |                              ^~~~~~
rope.cpp: In function 'void Do2()':
rope.cpp:74:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   74 |  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
      |  ^~~
rope.cpp:74:30: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   74 |  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
      |                              ^~~~~~

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 35964 KB Output is correct
2 Correct 40 ms 35964 KB Output is correct
3 Correct 37 ms 35964 KB Output is correct
4 Correct 37 ms 35964 KB Output is correct
5 Correct 37 ms 36084 KB Output is correct
6 Correct 37 ms 35964 KB Output is correct
7 Correct 37 ms 35964 KB Output is correct
8 Correct 37 ms 35956 KB Output is correct
9 Correct 38 ms 35964 KB Output is correct
10 Correct 38 ms 36060 KB Output is correct
11 Correct 38 ms 35964 KB Output is correct
12 Correct 37 ms 35964 KB Output is correct
13 Correct 36 ms 35956 KB Output is correct
14 Correct 36 ms 35956 KB Output is correct
15 Correct 37 ms 35964 KB Output is correct
16 Correct 37 ms 35964 KB Output is correct
17 Correct 37 ms 36084 KB Output is correct
18 Correct 37 ms 35964 KB Output is correct
19 Correct 36 ms 35964 KB Output is correct
20 Correct 37 ms 35996 KB Output is correct
21 Correct 37 ms 35960 KB Output is correct
22 Correct 38 ms 35964 KB Output is correct
23 Correct 37 ms 35964 KB Output is correct
24 Correct 36 ms 35964 KB Output is correct
25 Correct 37 ms 35956 KB Output is correct
26 Correct 37 ms 35964 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 35964 KB Output is correct
2 Correct 40 ms 35964 KB Output is correct
3 Correct 37 ms 35964 KB Output is correct
4 Correct 37 ms 35964 KB Output is correct
5 Correct 37 ms 36084 KB Output is correct
6 Correct 37 ms 35964 KB Output is correct
7 Correct 37 ms 35964 KB Output is correct
8 Correct 37 ms 35956 KB Output is correct
9 Correct 38 ms 35964 KB Output is correct
10 Correct 38 ms 36060 KB Output is correct
11 Correct 38 ms 35964 KB Output is correct
12 Correct 37 ms 35964 KB Output is correct
13 Correct 36 ms 35956 KB Output is correct
14 Correct 36 ms 35956 KB Output is correct
15 Correct 37 ms 35964 KB Output is correct
16 Correct 37 ms 35964 KB Output is correct
17 Correct 37 ms 36084 KB Output is correct
18 Correct 37 ms 35964 KB Output is correct
19 Correct 36 ms 35964 KB Output is correct
20 Correct 37 ms 35996 KB Output is correct
21 Correct 37 ms 35960 KB Output is correct
22 Correct 38 ms 35964 KB Output is correct
23 Correct 37 ms 35964 KB Output is correct
24 Correct 36 ms 35964 KB Output is correct
25 Correct 37 ms 35956 KB Output is correct
26 Correct 37 ms 35964 KB Output is correct
27 Correct 145 ms 37192 KB Output is correct
28 Correct 138 ms 37108 KB Output is correct
29 Correct 143 ms 37236 KB Output is correct
30 Correct 142 ms 36904 KB Output is correct
31 Correct 143 ms 37116 KB Output is correct
32 Correct 138 ms 37128 KB Output is correct
33 Correct 144 ms 37108 KB Output is correct
34 Correct 145 ms 36980 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 35964 KB Output is correct
2 Correct 40 ms 35964 KB Output is correct
3 Correct 37 ms 35964 KB Output is correct
4 Correct 37 ms 35964 KB Output is correct
5 Correct 37 ms 36084 KB Output is correct
6 Correct 37 ms 35964 KB Output is correct
7 Correct 37 ms 35964 KB Output is correct
8 Correct 37 ms 35956 KB Output is correct
9 Correct 38 ms 35964 KB Output is correct
10 Correct 38 ms 36060 KB Output is correct
11 Correct 38 ms 35964 KB Output is correct
12 Correct 37 ms 35964 KB Output is correct
13 Correct 36 ms 35956 KB Output is correct
14 Correct 36 ms 35956 KB Output is correct
15 Correct 37 ms 35964 KB Output is correct
16 Correct 37 ms 35964 KB Output is correct
17 Correct 37 ms 36084 KB Output is correct
18 Correct 37 ms 35964 KB Output is correct
19 Correct 36 ms 35964 KB Output is correct
20 Correct 37 ms 35996 KB Output is correct
21 Correct 37 ms 35960 KB Output is correct
22 Correct 38 ms 35964 KB Output is correct
23 Correct 37 ms 35964 KB Output is correct
24 Correct 36 ms 35964 KB Output is correct
25 Correct 37 ms 35956 KB Output is correct
26 Correct 37 ms 35964 KB Output is correct
27 Correct 145 ms 37192 KB Output is correct
28 Correct 138 ms 37108 KB Output is correct
29 Correct 143 ms 37236 KB Output is correct
30 Correct 142 ms 36904 KB Output is correct
31 Correct 143 ms 37116 KB Output is correct
32 Correct 138 ms 37128 KB Output is correct
33 Correct 144 ms 37108 KB Output is correct
34 Correct 145 ms 36980 KB Output is correct
35 Correct 118 ms 37324 KB Output is correct
36 Correct 117 ms 37364 KB Output is correct
37 Correct 117 ms 37320 KB Output is correct
38 Correct 117 ms 37492 KB Output is correct
39 Correct 117 ms 37368 KB Output is correct
40 Correct 118 ms 37368 KB Output is correct
41 Correct 117 ms 37372 KB Output is correct
42 Correct 117 ms 37364 KB Output is correct
43 Correct 119 ms 37372 KB Output is correct
44 Correct 118 ms 37364 KB Output is correct
45 Correct 117 ms 37364 KB Output is correct
46 Correct 117 ms 37364 KB Output is correct
47 Correct 118 ms 37372 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 35964 KB Output is correct
2 Correct 40 ms 35964 KB Output is correct
3 Correct 37 ms 35964 KB Output is correct
4 Correct 37 ms 35964 KB Output is correct
5 Correct 37 ms 36084 KB Output is correct
6 Correct 37 ms 35964 KB Output is correct
7 Correct 37 ms 35964 KB Output is correct
8 Correct 37 ms 35956 KB Output is correct
9 Correct 38 ms 35964 KB Output is correct
10 Correct 38 ms 36060 KB Output is correct
11 Correct 38 ms 35964 KB Output is correct
12 Correct 37 ms 35964 KB Output is correct
13 Correct 36 ms 35956 KB Output is correct
14 Correct 36 ms 35956 KB Output is correct
15 Correct 37 ms 35964 KB Output is correct
16 Correct 37 ms 35964 KB Output is correct
17 Correct 37 ms 36084 KB Output is correct
18 Correct 37 ms 35964 KB Output is correct
19 Correct 36 ms 35964 KB Output is correct
20 Correct 37 ms 35996 KB Output is correct
21 Correct 37 ms 35960 KB Output is correct
22 Correct 38 ms 35964 KB Output is correct
23 Correct 37 ms 35964 KB Output is correct
24 Correct 36 ms 35964 KB Output is correct
25 Correct 37 ms 35956 KB Output is correct
26 Correct 37 ms 35964 KB Output is correct
27 Correct 145 ms 37192 KB Output is correct
28 Correct 138 ms 37108 KB Output is correct
29 Correct 143 ms 37236 KB Output is correct
30 Correct 142 ms 36904 KB Output is correct
31 Correct 143 ms 37116 KB Output is correct
32 Correct 138 ms 37128 KB Output is correct
33 Correct 144 ms 37108 KB Output is correct
34 Correct 145 ms 36980 KB Output is correct
35 Correct 118 ms 37324 KB Output is correct
36 Correct 117 ms 37364 KB Output is correct
37 Correct 117 ms 37320 KB Output is correct
38 Correct 117 ms 37492 KB Output is correct
39 Correct 117 ms 37368 KB Output is correct
40 Correct 118 ms 37368 KB Output is correct
41 Correct 117 ms 37372 KB Output is correct
42 Correct 117 ms 37364 KB Output is correct
43 Correct 119 ms 37372 KB Output is correct
44 Correct 118 ms 37364 KB Output is correct
45 Correct 117 ms 37364 KB Output is correct
46 Correct 117 ms 37364 KB Output is correct
47 Correct 118 ms 37372 KB Output is correct
48 Correct 854 ms 51188 KB Output is correct
49 Correct 850 ms 51188 KB Output is correct
50 Correct 854 ms 51060 KB Output is correct
51 Correct 837 ms 50736 KB Output is correct
52 Correct 830 ms 49428 KB Output is correct
53 Correct 835 ms 50420 KB Output is correct
54 Correct 836 ms 49268 KB Output is correct
55 Correct 817 ms 49132 KB Output is correct
56 Correct 826 ms 48888 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 35964 KB Output is correct
2 Correct 40 ms 35964 KB Output is correct
3 Correct 37 ms 35964 KB Output is correct
4 Correct 37 ms 35964 KB Output is correct
5 Correct 37 ms 36084 KB Output is correct
6 Correct 37 ms 35964 KB Output is correct
7 Correct 37 ms 35964 KB Output is correct
8 Correct 37 ms 35956 KB Output is correct
9 Correct 38 ms 35964 KB Output is correct
10 Correct 38 ms 36060 KB Output is correct
11 Correct 38 ms 35964 KB Output is correct
12 Correct 37 ms 35964 KB Output is correct
13 Correct 36 ms 35956 KB Output is correct
14 Correct 36 ms 35956 KB Output is correct
15 Correct 37 ms 35964 KB Output is correct
16 Correct 37 ms 35964 KB Output is correct
17 Correct 37 ms 36084 KB Output is correct
18 Correct 37 ms 35964 KB Output is correct
19 Correct 36 ms 35964 KB Output is correct
20 Correct 37 ms 35996 KB Output is correct
21 Correct 37 ms 35960 KB Output is correct
22 Correct 38 ms 35964 KB Output is correct
23 Correct 37 ms 35964 KB Output is correct
24 Correct 36 ms 35964 KB Output is correct
25 Correct 37 ms 35956 KB Output is correct
26 Correct 37 ms 35964 KB Output is correct
27 Correct 145 ms 37192 KB Output is correct
28 Correct 138 ms 37108 KB Output is correct
29 Correct 143 ms 37236 KB Output is correct
30 Correct 142 ms 36904 KB Output is correct
31 Correct 143 ms 37116 KB Output is correct
32 Correct 138 ms 37128 KB Output is correct
33 Correct 144 ms 37108 KB Output is correct
34 Correct 145 ms 36980 KB Output is correct
35 Correct 118 ms 37324 KB Output is correct
36 Correct 117 ms 37364 KB Output is correct
37 Correct 117 ms 37320 KB Output is correct
38 Correct 117 ms 37492 KB Output is correct
39 Correct 117 ms 37368 KB Output is correct
40 Correct 118 ms 37368 KB Output is correct
41 Correct 117 ms 37372 KB Output is correct
42 Correct 117 ms 37364 KB Output is correct
43 Correct 119 ms 37372 KB Output is correct
44 Correct 118 ms 37364 KB Output is correct
45 Correct 117 ms 37364 KB Output is correct
46 Correct 117 ms 37364 KB Output is correct
47 Correct 118 ms 37372 KB Output is correct
48 Correct 854 ms 51188 KB Output is correct
49 Correct 850 ms 51188 KB Output is correct
50 Correct 854 ms 51060 KB Output is correct
51 Correct 837 ms 50736 KB Output is correct
52 Correct 830 ms 49428 KB Output is correct
53 Correct 835 ms 50420 KB Output is correct
54 Correct 836 ms 49268 KB Output is correct
55 Correct 817 ms 49132 KB Output is correct
56 Correct 826 ms 48888 KB Output is correct
57 Execution timed out 2593 ms 80352 KB Time limit exceeded
58 Halted 0 ms 0 KB -