oj.uz

Submission #32226

# Submission time Handle Problem Language Result Execution time Memory
32226 2017-10-05T01:24:04 Z dqhungdl Fireworks (APIO16_fireworks) C++14
26 / 100
 59 ms 9660 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int,int> ii;
int n,m,F[305][305];
bool Free[305][305];
vector<ii> g[300005];

bool cmp(ii x1,ii x2)
{
    return x1.second<x2.second;
}

void Sub1()
{
    sort(g[1].begin(),g[1].end(),cmp);
    int tmp=g[1][int(g[1].size())/2].second;
    int64_t res=0;
    for(int i=0;i<g[1].size();i++)
        res+=abs(g[1][i].second-tmp);
    cout<<res;
}

int DFS(int u,int len)
{
    if(u==3&&len==1)
        int h=0;
    if(Free[u][len]==true)
        return F[u][len];
    Free[u][len]=true;
    if(g[u].size()==0)
    {
        if(len==0)
            return F[u][len]=0;
        return F[u][len]=1e9;
    }
    F[u][len]=0;
    for(int i=0;i<g[u].size();i++)
    {
        int v=g[u][i].first;
        int w=g[u][i].second;
        int sum=1e9;
        for(int len1=0;len1<=len;len1++)
            sum=min(sum,DFS(v,len-len1)+abs(w-len1));
        F[u][len]=min(F[u][len]+sum,int(1e9));
    }
    return F[u][len];
}

void Sub2()
{
    int res=1e9;
    for(int i=0;i<=300;i++)
        res=min(res,DFS(1,i));
    cout<<res;
}

int main()
{
    ios_base::sync_with_stdio(false);
    //freopen("FIREWORKS.INP","r",stdin);
    cin>>n>>m;
    int u,w;
    for(int i=2;i<=n+m;i++)
    {
        cin>>u>>w;
        g[u].push_back(ii(i,w));
    }
    if(n==1)
        Sub1();
    else
        Sub2();
}

Compilation message

fireworks.cpp: In function 'void Sub1()':
fireworks.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<g[1].size();i++)
                  ^
fireworks.cpp: In function 'int DFS(int, int)':
fireworks.cpp:27:13: warning: unused variable 'h' [-Wunused-variable]
         int h=0;
             ^
fireworks.cpp:38:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<g[u].size();i++)
                  ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9660 KB Output is correct
2 Correct 0 ms 9660 KB Output is correct
3 Correct 3 ms 9660 KB Output is correct
4 Correct 0 ms 9660 KB Output is correct
5 Correct 0 ms 9660 KB Output is correct
6 Correct 3 ms 9660 KB Output is correct
7 Correct 3 ms 9660 KB Output is correct
8 Correct 0 ms 9660 KB Output is correct
9 Correct 3 ms 9660 KB Output is correct
10 Correct 0 ms 9660 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9660 KB Output is correct
2 Correct 6 ms 9660 KB Output is correct
3 Correct 9 ms 9660 KB Output is correct
4 Correct 16 ms 9660 KB Output is correct
5 Correct 23 ms 9660 KB Output is correct
6 Correct 23 ms 9660 KB Output is correct
7 Correct 29 ms 9660 KB Output is correct
8 Correct 26 ms 9660 KB Output is correct
9 Correct 39 ms 9660 KB Output is correct
10 Correct 36 ms 9660 KB Output is correct
11 Correct 39 ms 9660 KB Output is correct
12 Correct 46 ms 9660 KB Output is correct
13 Correct 46 ms 9660 KB Output is correct
14 Correct 49 ms 9660 KB Output is correct
15 Correct 46 ms 9660 KB Output is correct
16 Correct 46 ms 9660 KB Output is correct
17 Correct 59 ms 9660 KB Output is correct
18 Correct 49 ms 9660 KB Output is correct
19 Correct 49 ms 9660 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9660 KB Output is correct
2 Correct 0 ms 9660 KB Output is correct
3 Correct 3 ms 9660 KB Output is correct
4 Correct 0 ms 9660 KB Output is correct
5 Correct 0 ms 9660 KB Output is correct
6 Correct 3 ms 9660 KB Output is correct
7 Correct 3 ms 9660 KB Output is correct
8 Correct 0 ms 9660 KB Output is correct
9 Correct 3 ms 9660 KB Output is correct
10 Correct 0 ms 9660 KB Output is correct
11 Correct 6 ms 9660 KB Output is correct
12 Correct 6 ms 9660 KB Output is correct
13 Correct 9 ms 9660 KB Output is correct
14 Correct 16 ms 9660 KB Output is correct
15 Correct 23 ms 9660 KB Output is correct
16 Correct 23 ms 9660 KB Output is correct
17 Correct 29 ms 9660 KB Output is correct
18 Correct 26 ms 9660 KB Output is correct
19 Correct 39 ms 9660 KB Output is correct
20 Correct 36 ms 9660 KB Output is correct
21 Correct 39 ms 9660 KB Output is correct
22 Correct 46 ms 9660 KB Output is correct
23 Correct 46 ms 9660 KB Output is correct
24 Correct 49 ms 9660 KB Output is correct
25 Correct 46 ms 9660 KB Output is correct
26 Correct 46 ms 9660 KB Output is correct
27 Correct 59 ms 9660 KB Output is correct
28 Correct 49 ms 9660 KB Output is correct
29 Correct 49 ms 9660 KB Output is correct
30 Runtime error 0 ms 9660 KB Execution killed with signal 11 (could be triggered by violating memory limits)
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 9660 KB Output is correct
2 Correct 0 ms 9660 KB Output is correct
3 Correct 3 ms 9660 KB Output is correct
4 Correct 0 ms 9660 KB Output is correct
5 Correct 0 ms 9660 KB Output is correct
6 Correct 3 ms 9660 KB Output is correct
7 Correct 3 ms 9660 KB Output is correct
8 Correct 0 ms 9660 KB Output is correct
9 Correct 3 ms 9660 KB Output is correct
10 Correct 0 ms 9660 KB Output is correct
11 Correct 6 ms 9660 KB Output is correct
12 Correct 6 ms 9660 KB Output is correct
13 Correct 9 ms 9660 KB Output is correct
14 Correct 16 ms 9660 KB Output is correct
15 Correct 23 ms 9660 KB Output is correct
16 Correct 23 ms 9660 KB Output is correct
17 Correct 29 ms 9660 KB Output is correct
18 Correct 26 ms 9660 KB Output is correct
19 Correct 39 ms 9660 KB Output is correct
20 Correct 36 ms 9660 KB Output is correct
21 Correct 39 ms 9660 KB Output is correct
22 Correct 46 ms 9660 KB Output is correct
23 Correct 46 ms 9660 KB Output is correct
24 Correct 49 ms 9660 KB Output is correct
25 Correct 46 ms 9660 KB Output is correct
26 Correct 46 ms 9660 KB Output is correct
27 Correct 59 ms 9660 KB Output is correct
28 Correct 49 ms 9660 KB Output is correct
29 Correct 49 ms 9660 KB Output is correct
30 Runtime error 0 ms 9660 KB Execution killed with signal 11 (could be triggered by violating memory limits)
31 Halted 0 ms 0 KB -