oj.uz

Submission #328258

# Submission time Handle Problem Language Result Execution time Memory
328258 2020-11-16T02:52:06 Z daniel920712 Rope (JOI17_rope) C++14
45 / 100
 2500 ms 5092 KB 
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
#include <string.h>
#include <map>
#include <utility>
#include <algorithm>
#include <stack>
using namespace std;
int all[1000005];
int temp[1000005];
int ans[1000005];
bool have[5][100005]={0};
int cha[100005];
int DP[5][100005]={0};
int Con[5][100005]={0};
int tt[100005]={0};

vector < pair < int , int > > how;
int N,M;
int F(int x,int y)
{
    int t=0,i;
    if(have[x][y]) return DP[x][y];
    if(y==0) return 0;
    have[x][y]=1;

    if(x==0)
    {
        if((how[y].second-how[y].first+1)%2==0) DP[x][y]=F(0,y-1);
        else DP[x][y]=F(1,y-1)+min(cha[how[y].first],cha[how[y-1].second]);

    }
    else
    {
        if((how[y].second-how[y].first)%2==0) DP[x][y]=F(0,y-1);
        else DP[x][y]=F(1,y-1)+min(cha[how[y].first],cha[how[y-1].second]);
    }
    //for(i=0;i<=how[y].second;i++) if(temp[i]!=temp[how[y].second]) t+=cha[i];
    DP[x][y]=min(DP[x][y],Con[tt[temp[how[y].second]]][how[y].second]);

    return DP[x][y];
}
int main()
{
    int i,j,k,con=0,K,now,l,t=0;
    scanf("%d %d",&N,&M);
    for(i=0;i<N;i++) scanf("%d",&all[i]);
    for(i=1;i<=M;i++) ans[i]=1e9;
    for(i=1;i<=M;i++)
    {
        for(j=1;j<=M;j++)
        {
            con=0;
            tt[i]=0;
            tt[j]=1;
            for(k=0;k<N;k++)
            {
                if(all[k]!=i&&all[k]!=j)
                {
                    con++;
                    temp[k]=i;
                    cha[k]=0;
                }
                else
                {
                    cha[k]=1;
                    temp[k]=all[k];
                }
            }
            how.clear();
            now=0;
            l=0;
            Con[0][0]=0;
            Con[1][0]=0;
            for(k=0;k<N;k++)
            {
                if(temp[k]==j&&cha[k]) Con[0][k]++;
                if(temp[k]==i&&cha[k]) Con[1][k]++;
                Con[0][k+1]=Con[0][k];
                Con[1][k+1]=Con[1][k];
                if(k&&temp[k]!=temp[k-1])
                {
                    how.push_back(make_pair(l,k-1));
                    l=k;
                }
            }

            how.push_back(make_pair(l,k-1));

            K=how.size();
            for(k=0;k<=K;k++) have[0][k]=have[1][k]=0;
            ans[i]=min(ans[i],min(F(0,K-1),F(1,K-1))+con);
            ans[j]=min(ans[j],min(F(0,K-1),F(1,K-1))+con);

            for(k=0;k<N;k++) temp[k]=all[N-k-1];

            con=0;

            for(k=0;k<N;k++)
            {
                if(temp[k]!=i&&temp[k]!=j)
                {
                    con++;
                    temp[k]=i;
                    cha[k]=0;
                }
                else cha[k]=1;

            }
            how.clear();
            now=0;
            l=0;
            Con[0][0]=0;
            Con[1][0]=0;
            for(k=0;k<N;k++)
            {
                if(temp[k]==j&&cha[k]) Con[0][k]++;
                if(temp[k]==i&&cha[k]) Con[1][k]++;
                Con[0][k+1]=Con[0][k];
                Con[1][k+1]=Con[1][k];
                if(k&&temp[k]!=temp[k-1])
                {
                    how.push_back(make_pair(l,k-1));
                    l=k;
                }
            }


            how.push_back(make_pair(l,k-1));

            K=how.size();
            for(k=0;k<=K;k++) have[0][k]=have[1][k]=0;

            ans[i]=min(ans[i],min(F(0,K-1),F(1,K-1))+con);
            ans[j]=min(ans[j],min(F(0,K-1),F(1,K-1))+con);


        }
    }

    for(i=1;i<=M;i++) printf("%d\n",ans[i]);
	return 0;
}

Compilation message

rope.cpp: In function 'int F(int, int)':
rope.cpp:24:9: warning: unused variable 't' [-Wunused-variable]
   24 |     int t=0,i;
      |         ^
rope.cpp:24:13: warning: unused variable 'i' [-Wunused-variable]
   24 |     int t=0,i;
      |             ^
rope.cpp: In function 'int main()':
rope.cpp:47:23: warning: variable 'now' set but not used [-Wunused-but-set-variable]
   47 |     int i,j,k,con=0,K,now,l,t=0;
      |                       ^~~
rope.cpp:47:29: warning: unused variable 't' [-Wunused-variable]
   47 |     int i,j,k,con=0,K,now,l,t=0;
      |                             ^
rope.cpp:48:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   48 |     scanf("%d %d",&N,&M);
      |     ~~~~~^~~~~~~~~~~~~~~
rope.cpp:49:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   49 |     for(i=0;i<N;i++) scanf("%d",&all[i]);
      |                      ~~~~~^~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 0 ms 364 KB Output is correct
26 Correct 0 ms 364 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 0 ms 364 KB Output is correct
26 Correct 0 ms 364 KB Output is correct
27 Correct 359 ms 3560 KB Output is correct
28 Correct 108 ms 5092 KB Output is correct
29 Correct 316 ms 3988 KB Output is correct
30 Correct 143 ms 4760 KB Output is correct
31 Correct 346 ms 3816 KB Output is correct
32 Correct 108 ms 5092 KB Output is correct
33 Correct 308 ms 3944 KB Output is correct
34 Correct 147 ms 4756 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 0 ms 364 KB Output is correct
26 Correct 0 ms 364 KB Output is correct
27 Correct 359 ms 3560 KB Output is correct
28 Correct 108 ms 5092 KB Output is correct
29 Correct 316 ms 3988 KB Output is correct
30 Correct 143 ms 4760 KB Output is correct
31 Correct 346 ms 3816 KB Output is correct
32 Correct 108 ms 5092 KB Output is correct
33 Correct 308 ms 3944 KB Output is correct
34 Correct 147 ms 4756 KB Output is correct
35 Execution timed out 2554 ms 2668 KB Time limit exceeded
36 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 0 ms 364 KB Output is correct
26 Correct 0 ms 364 KB Output is correct
27 Correct 359 ms 3560 KB Output is correct
28 Correct 108 ms 5092 KB Output is correct
29 Correct 316 ms 3988 KB Output is correct
30 Correct 143 ms 4760 KB Output is correct
31 Correct 346 ms 3816 KB Output is correct
32 Correct 108 ms 5092 KB Output is correct
33 Correct 308 ms 3944 KB Output is correct
34 Correct 147 ms 4756 KB Output is correct
35 Execution timed out 2554 ms 2668 KB Time limit exceeded
36 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 0 ms 364 KB Output is correct
26 Correct 0 ms 364 KB Output is correct
27 Correct 359 ms 3560 KB Output is correct
28 Correct 108 ms 5092 KB Output is correct
29 Correct 316 ms 3988 KB Output is correct
30 Correct 143 ms 4760 KB Output is correct
31 Correct 346 ms 3816 KB Output is correct
32 Correct 108 ms 5092 KB Output is correct
33 Correct 308 ms 3944 KB Output is correct
34 Correct 147 ms 4756 KB Output is correct
35 Execution timed out 2554 ms 2668 KB Time limit exceeded
36 Halted 0 ms 0 KB -