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Submission #955780

# Submission time Handle Problem Language Result Execution time Memory
955780 2024-03-31T12:13:13 Z vjudge1 Fireworks (APIO16_fireworks) C++17
100 / 100
 138 ms 66136 KB 
#include<bits/stdc++.h>

#define N 300001

int n,M;
int e[N][3],eo,h[N];

std::priority_queue<long long> pq[N];
long long m[N],c[N];

void link(int u,int v,int w) { e[++eo][0]=v,e[eo][1]=w,e[eo][2]=h[u],h[u]=eo; }

void dfs(int u,int p,int ci)
{
    m[u]=c[u]=0;

    if(u > n)
    {
        pq[u].push(ci);
        pq[u].push(ci);
        m[u]=1;
        c[u]=-ci;
        return;
    }

    for(int v,j=h[u];j;j=e[j][2])if((v=e[j][0])-p)
    {
        dfs(v,u,e[j][1]);
        if(pq[v].size()>pq[u].size()) { std::swap(pq[v],pq[u]); std::swap(m[u],m[v]), std::swap(c[u],c[v]); }
        while(pq[v].size()) pq[u].push(pq[v].top()), pq[v].pop();
        m[u]+=m[v];
        c[u]+=c[v];
    }

    if(u!=1)
    {
        while(m[u]>1)
        {
            --m[u];
            c[u]+=pq[u].top();
            pq[u].pop();
        }

        long long x=pq[u].top();
        pq[u].pop();

        long long x2=pq[u].top();
        pq[u].pop();

        pq[u].push(x+ci);
        pq[u].push(x2+ci);

        c[u]-=ci;
    }
    else
    {
        while(m[1]>0)
        {
            --m[1];
            c[1]+=pq[1].top();
            pq[1].pop();
        }
        printf("%lld",c[1]);
    }
}

int main()
{
    scanf("%d%d",&n,&M);
    for(int p,c,i=2;i<=n+M;++i) scanf("%d%d",&p,&c),link(p,i,c);
    dfs(1,1,-1);
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:70:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |     scanf("%d%d",&n,&M);
      |     ~~~~~^~~~~~~~~~~~~~
fireworks.cpp:71:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |     for(int p,c,i=2;i<=n+M;++i) scanf("%d%d",&p,&c),link(p,i,c);
      |                                 ~~~~~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12724 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 2 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 3 ms 12636 KB Output is correct
5 Correct 2 ms 12724 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 2 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 2 ms 12636 KB Output is correct
15 Correct 2 ms 12640 KB Output is correct
16 Correct 2 ms 12644 KB Output is correct
17 Correct 2 ms 12640 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 3 ms 12636 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12724 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 2 ms 12724 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 2 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 2 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 2 ms 12636 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 2 ms 12640 KB Output is correct
26 Correct 2 ms 12644 KB Output is correct
27 Correct 2 ms 12640 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 3 ms 12636 KB Output is correct
31 Correct 3 ms 12636 KB Output is correct
32 Correct 3 ms 12636 KB Output is correct
33 Correct 4 ms 12632 KB Output is correct
34 Correct 3 ms 12832 KB Output is correct
35 Correct 4 ms 12892 KB Output is correct
36 Correct 4 ms 12888 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 4 ms 12892 KB Output is correct
39 Correct 4 ms 12892 KB Output is correct
40 Correct 4 ms 13404 KB Output is correct
41 Correct 4 ms 13404 KB Output is correct
42 Correct 3 ms 12636 KB Output is correct
43 Correct 5 ms 13148 KB Output is correct
44 Correct 4 ms 13148 KB Output is correct
45 Correct 5 ms 13148 KB Output is correct
46 Correct 4 ms 13148 KB Output is correct
47 Correct 5 ms 13152 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 13148 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 4 ms 12892 KB Output is correct
52 Correct 4 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 4 ms 13148 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12632 KB Output is correct
2 Correct 3 ms 12636 KB Output is correct
3 Correct 2 ms 12636 KB Output is correct
4 Correct 2 ms 12636 KB Output is correct
5 Correct 2 ms 12724 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 3 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 2 ms 12636 KB Output is correct
13 Correct 2 ms 12636 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 2 ms 12724 KB Output is correct
16 Correct 2 ms 12636 KB Output is correct
17 Correct 2 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 2 ms 12636 KB Output is correct
20 Correct 2 ms 12636 KB Output is correct
21 Correct 3 ms 12636 KB Output is correct
22 Correct 2 ms 12636 KB Output is correct
23 Correct 2 ms 12636 KB Output is correct
24 Correct 2 ms 12636 KB Output is correct
25 Correct 2 ms 12640 KB Output is correct
26 Correct 2 ms 12644 KB Output is correct
27 Correct 2 ms 12640 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 3 ms 12636 KB Output is correct
30 Correct 3 ms 12636 KB Output is correct
31 Correct 3 ms 12636 KB Output is correct
32 Correct 3 ms 12636 KB Output is correct
33 Correct 4 ms 12632 KB Output is correct
34 Correct 3 ms 12832 KB Output is correct
35 Correct 4 ms 12892 KB Output is correct
36 Correct 4 ms 12888 KB Output is correct
37 Correct 4 ms 12892 KB Output is correct
38 Correct 4 ms 12892 KB Output is correct
39 Correct 4 ms 12892 KB Output is correct
40 Correct 4 ms 13404 KB Output is correct
41 Correct 4 ms 13404 KB Output is correct
42 Correct 3 ms 12636 KB Output is correct
43 Correct 5 ms 13148 KB Output is correct
44 Correct 4 ms 13148 KB Output is correct
45 Correct 5 ms 13148 KB Output is correct
46 Correct 4 ms 13148 KB Output is correct
47 Correct 5 ms 13152 KB Output is correct
48 Correct 4 ms 12892 KB Output is correct
49 Correct 4 ms 13148 KB Output is correct
50 Correct 4 ms 12892 KB Output is correct
51 Correct 4 ms 12892 KB Output is correct
52 Correct 4 ms 12892 KB Output is correct
53 Correct 5 ms 12892 KB Output is correct
54 Correct 4 ms 13148 KB Output is correct
55 Correct 7 ms 13404 KB Output is correct
56 Correct 22 ms 17244 KB Output is correct
57 Correct 35 ms 18476 KB Output is correct
58 Correct 44 ms 19652 KB Output is correct
59 Correct 59 ms 22636 KB Output is correct
60 Correct 81 ms 23504 KB Output is correct
61 Correct 87 ms 24780 KB Output is correct
62 Correct 98 ms 25432 KB Output is correct
63 Correct 128 ms 26956 KB Output is correct
64 Correct 135 ms 26960 KB Output is correct
65 Correct 100 ms 66136 KB Output is correct
66 Correct 82 ms 66128 KB Output is correct
67 Correct 72 ms 19308 KB Output is correct
68 Correct 116 ms 48768 KB Output is correct
69 Correct 120 ms 45544 KB Output is correct
70 Correct 121 ms 45516 KB Output is correct
71 Correct 138 ms 40384 KB Output is correct
72 Correct 136 ms 40344 KB Output is correct
73 Correct 115 ms 37052 KB Output is correct
74 Correct 122 ms 40128 KB Output is correct
75 Correct 121 ms 35264 KB Output is correct
76 Correct 125 ms 36456 KB Output is correct
77 Correct 128 ms 35908 KB Output is correct
78 Correct 130 ms 36804 KB Output is correct
79 Correct 114 ms 35980 KB Output is correct