oj.uz

Submission #313834

# Submission time Handle Problem Language Result Execution time Memory
313834 2020-10-17T07:02:35 Z MKopchev Restore Array (RMI19_restore) C++14
100 / 100
 387 ms 1012 KB 
#include<bits/stdc++.h>
using namespace std;

const int nmax=5e3+42;

struct edge
{
    int u,v,cost;
};
vector<edge> all;

int n,q;

int dist[nmax];

void bellman()
{
    for(int i=1;i<=n;i++)dist[i]=1e9;

    for(int t=0;t<=n;t++)
    {
        for(auto w:all)
            if(dist[w.u]+w.cost<dist[w.v])
            {
                dist[w.v]=dist[w.u]+w.cost;

                //cout<<"update "<<w.u<<" "<<w.v<<" "<<w.cost<<endl;

                //for(int j=0;j<=n;j++)cout<<dist[j]<<" ";cout<<endl;
            }

        //for(int j=0;j<=n;j++)cout<<dist[j]<<" ";cout<<endl;
    }
    for(auto w:all)
        if(dist[w.u]+w.cost<dist[w.v])
        {
            printf("-1\n");
            exit(0);
        }

    for(int i=1;i<=n;i++)
        printf("%i ",dist[i]-dist[i-1]);
    printf("\n");
}

int main()
{
    scanf("%i%i",&n,&q);

    for(int i=0;i<n;i++)
    {
        edge cur;

        cur.u=i;
        cur.v=i+1;
        cur.cost=1;
        all.push_back(cur);

        cur.u=i+1;
        cur.v=i;
        cur.cost=0;
        all.push_back(cur);
    }

    for(int i=1;i<=q;i++)
    {
        edge cur;

        int l,r,k,val;

        scanf("%i%i%i%i",&l,&r,&k,&val);
        l++;
        r++;

        if(val==0)
        {
            cur.u=l-1;
            cur.v=r;
            cur.cost=(r-l+1)-(k+1)+1;
            all.push_back(cur);
        }
        else
        {
            cur.u=r;
            cur.v=l-1;
            cur.cost=-((r-l+1)-(k-1));
            all.push_back(cur);
        }
    }
    /*
    for(auto w:all)
        cout<<w.u<<" "<<w.v<<" "<<w.cost<<endl;
    */
    bellman();

    return 0;
}

Compilation message

restore.cpp: In function 'int main()':
restore.cpp:48:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   48 |     scanf("%i%i",&n,&q);
      |     ~~~~~^~~~~~~~~~~~~~
restore.cpp:71:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   71 |         scanf("%i%i%i%i",&l,&r,&k,&val);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 256 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 139 ms 960 KB Output is correct
2 Correct 128 ms 960 KB Output is correct
3 Correct 129 ms 960 KB Output is correct
4 Correct 128 ms 960 KB Output is correct
5 Correct 347 ms 960 KB Output is correct
6 Correct 344 ms 960 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 139 ms 960 KB Output is correct
2 Correct 128 ms 960 KB Output is correct
3 Correct 129 ms 960 KB Output is correct
4 Correct 128 ms 960 KB Output is correct
5 Correct 347 ms 960 KB Output is correct
6 Correct 344 ms 960 KB Output is correct
7 Correct 139 ms 1012 KB Output is correct
8 Correct 132 ms 960 KB Output is correct
9 Correct 131 ms 960 KB Output is correct
10 Correct 131 ms 960 KB Output is correct
11 Correct 373 ms 952 KB Output is correct
12 Correct 387 ms 960 KB Output is correct
13 Correct 127 ms 960 KB Output is correct
14 Correct 133 ms 960 KB Output is correct
15 Correct 138 ms 1012 KB Output is correct
16 Correct 149 ms 960 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 139 ms 960 KB Output is correct
12 Correct 128 ms 960 KB Output is correct
13 Correct 129 ms 960 KB Output is correct
14 Correct 128 ms 960 KB Output is correct
15 Correct 347 ms 960 KB Output is correct
16 Correct 344 ms 960 KB Output is correct
17 Correct 139 ms 1012 KB Output is correct
18 Correct 132 ms 960 KB Output is correct
19 Correct 131 ms 960 KB Output is correct
20 Correct 131 ms 960 KB Output is correct
21 Correct 373 ms 952 KB Output is correct
22 Correct 387 ms 960 KB Output is correct
23 Correct 127 ms 960 KB Output is correct
24 Correct 133 ms 960 KB Output is correct
25 Correct 138 ms 1012 KB Output is correct
26 Correct 149 ms 960 KB Output is correct
27 Correct 127 ms 1012 KB Output is correct
28 Correct 141 ms 960 KB Output is correct
29 Correct 128 ms 1012 KB Output is correct
30 Correct 136 ms 960 KB Output is correct
31 Correct 131 ms 960 KB Output is correct
32 Correct 128 ms 960 KB Output is correct
33 Correct 364 ms 960 KB Output is correct
34 Correct 369 ms 960 KB Output is correct
35 Correct 131 ms 1012 KB Output is correct
36 Correct 128 ms 1008 KB Output is correct