oj.uz

Submission #255702

# Submission time Handle Problem Language Result Execution time Memory
255702 2020-08-01T15:40:59 Z Namnamseo Rope (JOI17_rope) C++17
80 / 100
 2500 ms 81912 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pp;
void read(int& x){ scanf("%d",&x); }
template<typename T,typename... Args>
void read(T& a,Args&... b){ read(a); read(b...); }
#define all(x) (x).begin(),(x).end()
#define pb push_back

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);
    }
}

int main()
{
    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:39:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
  ^~~
rope.cpp:39:30: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
                              ^~~~~~
rope.cpp: In function 'void Do2()':
rope.cpp:66:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
  ^~~
rope.cpp:66:30: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for(auto& v:adj) v.clear(); memset(self, 0, sizeof(self)); memset(t, 0, sizeof(t));
                              ^~~~~~
rope.cpp: In function 'void read(int&)':
rope.cpp:5:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 void read(int& x){ scanf("%d",&x); }
                    ~~~~~^~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 35960 KB Output is correct
2 Correct 37 ms 35968 KB Output is correct
3 Correct 44 ms 35968 KB Output is correct
4 Correct 36 ms 35968 KB Output is correct
5 Correct 43 ms 35968 KB Output is correct
6 Correct 37 ms 35968 KB Output is correct
7 Correct 36 ms 35968 KB Output is correct
8 Correct 35 ms 35968 KB Output is correct
9 Correct 36 ms 35960 KB Output is correct
10 Correct 36 ms 35960 KB Output is correct
11 Correct 37 ms 35968 KB Output is correct
12 Correct 36 ms 35968 KB Output is correct
13 Correct 36 ms 35960 KB Output is correct
14 Correct 36 ms 35968 KB Output is correct
15 Correct 39 ms 35916 KB Output is correct
16 Correct 35 ms 35960 KB Output is correct
17 Correct 40 ms 35960 KB Output is correct
18 Correct 40 ms 35968 KB Output is correct
19 Correct 43 ms 35960 KB Output is correct
20 Correct 36 ms 35968 KB Output is correct
21 Correct 37 ms 35968 KB Output is correct
22 Correct 37 ms 35968 KB Output is correct
23 Correct 36 ms 35968 KB Output is correct
24 Correct 36 ms 35968 KB Output is correct
25 Correct 37 ms 35960 KB Output is correct
26 Correct 36 ms 36088 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 35960 KB Output is correct
2 Correct 37 ms 35968 KB Output is correct
3 Correct 44 ms 35968 KB Output is correct
4 Correct 36 ms 35968 KB Output is correct
5 Correct 43 ms 35968 KB Output is correct
6 Correct 37 ms 35968 KB Output is correct
7 Correct 36 ms 35968 KB Output is correct
8 Correct 35 ms 35968 KB Output is correct
9 Correct 36 ms 35960 KB Output is correct
10 Correct 36 ms 35960 KB Output is correct
11 Correct 37 ms 35968 KB Output is correct
12 Correct 36 ms 35968 KB Output is correct
13 Correct 36 ms 35960 KB Output is correct
14 Correct 36 ms 35968 KB Output is correct
15 Correct 39 ms 35916 KB Output is correct
16 Correct 35 ms 35960 KB Output is correct
17 Correct 40 ms 35960 KB Output is correct
18 Correct 40 ms 35968 KB Output is correct
19 Correct 43 ms 35960 KB Output is correct
20 Correct 36 ms 35968 KB Output is correct
21 Correct 37 ms 35968 KB Output is correct
22 Correct 37 ms 35968 KB Output is correct
23 Correct 36 ms 35968 KB Output is correct
24 Correct 36 ms 35968 KB Output is correct
25 Correct 37 ms 35960 KB Output is correct
26 Correct 36 ms 36088 KB Output is correct
27 Correct 179 ms 37188 KB Output is correct
28 Correct 172 ms 37112 KB Output is correct
29 Correct 178 ms 37240 KB Output is correct
30 Correct 164 ms 36984 KB Output is correct
31 Correct 156 ms 37112 KB Output is correct
32 Correct 161 ms 37240 KB Output is correct
33 Correct 163 ms 37112 KB Output is correct
34 Correct 157 ms 36856 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 35960 KB Output is correct
2 Correct 37 ms 35968 KB Output is correct
3 Correct 44 ms 35968 KB Output is correct
4 Correct 36 ms 35968 KB Output is correct
5 Correct 43 ms 35968 KB Output is correct
6 Correct 37 ms 35968 KB Output is correct
7 Correct 36 ms 35968 KB Output is correct
8 Correct 35 ms 35968 KB Output is correct
9 Correct 36 ms 35960 KB Output is correct
10 Correct 36 ms 35960 KB Output is correct
11 Correct 37 ms 35968 KB Output is correct
12 Correct 36 ms 35968 KB Output is correct
13 Correct 36 ms 35960 KB Output is correct
14 Correct 36 ms 35968 KB Output is correct
15 Correct 39 ms 35916 KB Output is correct
16 Correct 35 ms 35960 KB Output is correct
17 Correct 40 ms 35960 KB Output is correct
18 Correct 40 ms 35968 KB Output is correct
19 Correct 43 ms 35960 KB Output is correct
20 Correct 36 ms 35968 KB Output is correct
21 Correct 37 ms 35968 KB Output is correct
22 Correct 37 ms 35968 KB Output is correct
23 Correct 36 ms 35968 KB Output is correct
24 Correct 36 ms 35968 KB Output is correct
25 Correct 37 ms 35960 KB Output is correct
26 Correct 36 ms 36088 KB Output is correct
27 Correct 179 ms 37188 KB Output is correct
28 Correct 172 ms 37112 KB Output is correct
29 Correct 178 ms 37240 KB Output is correct
30 Correct 164 ms 36984 KB Output is correct
31 Correct 156 ms 37112 KB Output is correct
32 Correct 161 ms 37240 KB Output is correct
33 Correct 163 ms 37112 KB Output is correct
34 Correct 157 ms 36856 KB Output is correct
35 Correct 127 ms 37240 KB Output is correct
36 Correct 124 ms 37240 KB Output is correct
37 Correct 119 ms 37240 KB Output is correct
38 Correct 126 ms 37240 KB Output is correct
39 Correct 125 ms 37288 KB Output is correct
40 Correct 122 ms 37368 KB Output is correct
41 Correct 116 ms 37372 KB Output is correct
42 Correct 122 ms 37368 KB Output is correct
43 Correct 119 ms 37368 KB Output is correct
44 Correct 120 ms 37368 KB Output is correct
45 Correct 115 ms 37368 KB Output is correct
46 Correct 119 ms 37368 KB Output is correct
47 Correct 120 ms 37368 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 35960 KB Output is correct
2 Correct 37 ms 35968 KB Output is correct
3 Correct 44 ms 35968 KB Output is correct
4 Correct 36 ms 35968 KB Output is correct
5 Correct 43 ms 35968 KB Output is correct
6 Correct 37 ms 35968 KB Output is correct
7 Correct 36 ms 35968 KB Output is correct
8 Correct 35 ms 35968 KB Output is correct
9 Correct 36 ms 35960 KB Output is correct
10 Correct 36 ms 35960 KB Output is correct
11 Correct 37 ms 35968 KB Output is correct
12 Correct 36 ms 35968 KB Output is correct
13 Correct 36 ms 35960 KB Output is correct
14 Correct 36 ms 35968 KB Output is correct
15 Correct 39 ms 35916 KB Output is correct
16 Correct 35 ms 35960 KB Output is correct
17 Correct 40 ms 35960 KB Output is correct
18 Correct 40 ms 35968 KB Output is correct
19 Correct 43 ms 35960 KB Output is correct
20 Correct 36 ms 35968 KB Output is correct
21 Correct 37 ms 35968 KB Output is correct
22 Correct 37 ms 35968 KB Output is correct
23 Correct 36 ms 35968 KB Output is correct
24 Correct 36 ms 35968 KB Output is correct
25 Correct 37 ms 35960 KB Output is correct
26 Correct 36 ms 36088 KB Output is correct
27 Correct 179 ms 37188 KB Output is correct
28 Correct 172 ms 37112 KB Output is correct
29 Correct 178 ms 37240 KB Output is correct
30 Correct 164 ms 36984 KB Output is correct
31 Correct 156 ms 37112 KB Output is correct
32 Correct 161 ms 37240 KB Output is correct
33 Correct 163 ms 37112 KB Output is correct
34 Correct 157 ms 36856 KB Output is correct
35 Correct 127 ms 37240 KB Output is correct
36 Correct 124 ms 37240 KB Output is correct
37 Correct 119 ms 37240 KB Output is correct
38 Correct 126 ms 37240 KB Output is correct
39 Correct 125 ms 37288 KB Output is correct
40 Correct 122 ms 37368 KB Output is correct
41 Correct 116 ms 37372 KB Output is correct
42 Correct 122 ms 37368 KB Output is correct
43 Correct 119 ms 37368 KB Output is correct
44 Correct 120 ms 37368 KB Output is correct
45 Correct 115 ms 37368 KB Output is correct
46 Correct 119 ms 37368 KB Output is correct
47 Correct 120 ms 37368 KB Output is correct
48 Correct 882 ms 51192 KB Output is correct
49 Correct 876 ms 51192 KB Output is correct
50 Correct 850 ms 51168 KB Output is correct
51 Correct 875 ms 50656 KB Output is correct
52 Correct 892 ms 49400 KB Output is correct
53 Correct 869 ms 50300 KB Output is correct
54 Correct 828 ms 49400 KB Output is correct
55 Correct 854 ms 49144 KB Output is correct
56 Correct 845 ms 48888 KB Output is correct

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 35960 KB Output is correct
2 Correct 37 ms 35968 KB Output is correct
3 Correct 44 ms 35968 KB Output is correct
4 Correct 36 ms 35968 KB Output is correct
5 Correct 43 ms 35968 KB Output is correct
6 Correct 37 ms 35968 KB Output is correct
7 Correct 36 ms 35968 KB Output is correct
8 Correct 35 ms 35968 KB Output is correct
9 Correct 36 ms 35960 KB Output is correct
10 Correct 36 ms 35960 KB Output is correct
11 Correct 37 ms 35968 KB Output is correct
12 Correct 36 ms 35968 KB Output is correct
13 Correct 36 ms 35960 KB Output is correct
14 Correct 36 ms 35968 KB Output is correct
15 Correct 39 ms 35916 KB Output is correct
16 Correct 35 ms 35960 KB Output is correct
17 Correct 40 ms 35960 KB Output is correct
18 Correct 40 ms 35968 KB Output is correct
19 Correct 43 ms 35960 KB Output is correct
20 Correct 36 ms 35968 KB Output is correct
21 Correct 37 ms 35968 KB Output is correct
22 Correct 37 ms 35968 KB Output is correct
23 Correct 36 ms 35968 KB Output is correct
24 Correct 36 ms 35968 KB Output is correct
25 Correct 37 ms 35960 KB Output is correct
26 Correct 36 ms 36088 KB Output is correct
27 Correct 179 ms 37188 KB Output is correct
28 Correct 172 ms 37112 KB Output is correct
29 Correct 178 ms 37240 KB Output is correct
30 Correct 164 ms 36984 KB Output is correct
31 Correct 156 ms 37112 KB Output is correct
32 Correct 161 ms 37240 KB Output is correct
33 Correct 163 ms 37112 KB Output is correct
34 Correct 157 ms 36856 KB Output is correct
35 Correct 127 ms 37240 KB Output is correct
36 Correct 124 ms 37240 KB Output is correct
37 Correct 119 ms 37240 KB Output is correct
38 Correct 126 ms 37240 KB Output is correct
39 Correct 125 ms 37288 KB Output is correct
40 Correct 122 ms 37368 KB Output is correct
41 Correct 116 ms 37372 KB Output is correct
42 Correct 122 ms 37368 KB Output is correct
43 Correct 119 ms 37368 KB Output is correct
44 Correct 120 ms 37368 KB Output is correct
45 Correct 115 ms 37368 KB Output is correct
46 Correct 119 ms 37368 KB Output is correct
47 Correct 120 ms 37368 KB Output is correct
48 Correct 882 ms 51192 KB Output is correct
49 Correct 876 ms 51192 KB Output is correct
50 Correct 850 ms 51168 KB Output is correct
51 Correct 875 ms 50656 KB Output is correct
52 Correct 892 ms 49400 KB Output is correct
53 Correct 869 ms 50300 KB Output is correct
54 Correct 828 ms 49400 KB Output is correct
55 Correct 854 ms 49144 KB Output is correct
56 Correct 845 ms 48888 KB Output is correct
57 Execution timed out 2592 ms 81912 KB Time limit exceeded
58 Halted 0 ms 0 KB -