oj.uz

Submission #955778

# Submission time Handle Problem Language Result Execution time Memory
955778 2024-03-31T12:12:12 Z sleepntsheep Fireworks (APIO16_fireworks) C++17
100 / 100
 152 ms 70988 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 3 ms 12636 KB Output is correct
2 Correct 5 ms 12892 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 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12632 KB Output is correct
10 Correct 2 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 3 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 12636 KB Output is correct
6 Correct 3 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 3 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 4 ms 12748 KB Output is correct
14 Correct 3 ms 12636 KB Output is correct
15 Correct 3 ms 12760 KB Output is correct
16 Correct 3 ms 12632 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 2 ms 12636 KB Output is correct
19 Correct 4 ms 12636 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 5 ms 12892 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 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12632 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 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 12636 KB Output is correct
16 Correct 3 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 3 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 4 ms 12748 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12760 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 4 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 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 6 ms 12764 KB Output is correct
36 Correct 5 ms 12892 KB Output is correct
37 Correct 4 ms 13024 KB Output is correct
38 Correct 4 ms 12892 KB Output is correct
39 Correct 5 ms 12988 KB Output is correct
40 Correct 4 ms 13660 KB Output is correct
41 Correct 4 ms 13640 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 4 ms 13404 KB Output is correct
44 Correct 4 ms 13148 KB Output is correct
45 Correct 5 ms 13148 KB Output is correct
46 Correct 5 ms 13148 KB Output is correct
47 Correct 5 ms 13148 KB Output is correct
48 Correct 5 ms 13216 KB Output is correct
49 Correct 4 ms 13148 KB Output is correct
50 Correct 5 ms 12892 KB Output is correct
51 Correct 4 ms 12892 KB Output is correct
52 Correct 5 ms 13088 KB Output is correct
53 Correct 4 ms 13148 KB Output is correct
54 Correct 4 ms 13140 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 12636 KB Output is correct
2 Correct 5 ms 12892 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 12636 KB Output is correct
6 Correct 3 ms 12636 KB Output is correct
7 Correct 3 ms 12636 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12632 KB Output is correct
10 Correct 2 ms 12636 KB Output is correct
11 Correct 3 ms 12636 KB Output is correct
12 Correct 3 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 12636 KB Output is correct
16 Correct 3 ms 12636 KB Output is correct
17 Correct 3 ms 12636 KB Output is correct
18 Correct 3 ms 12636 KB Output is correct
19 Correct 3 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 4 ms 12748 KB Output is correct
24 Correct 3 ms 12636 KB Output is correct
25 Correct 3 ms 12760 KB Output is correct
26 Correct 3 ms 12632 KB Output is correct
27 Correct 3 ms 12636 KB Output is correct
28 Correct 2 ms 12636 KB Output is correct
29 Correct 4 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 3 ms 12892 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 6 ms 12764 KB Output is correct
36 Correct 5 ms 12892 KB Output is correct
37 Correct 4 ms 13024 KB Output is correct
38 Correct 4 ms 12892 KB Output is correct
39 Correct 5 ms 12988 KB Output is correct
40 Correct 4 ms 13660 KB Output is correct
41 Correct 4 ms 13640 KB Output is correct
42 Correct 4 ms 12892 KB Output is correct
43 Correct 4 ms 13404 KB Output is correct
44 Correct 4 ms 13148 KB Output is correct
45 Correct 5 ms 13148 KB Output is correct
46 Correct 5 ms 13148 KB Output is correct
47 Correct 5 ms 13148 KB Output is correct
48 Correct 5 ms 13216 KB Output is correct
49 Correct 4 ms 13148 KB Output is correct
50 Correct 5 ms 12892 KB Output is correct
51 Correct 4 ms 12892 KB Output is correct
52 Correct 5 ms 13088 KB Output is correct
53 Correct 4 ms 13148 KB Output is correct
54 Correct 4 ms 13140 KB Output is correct
55 Correct 7 ms 13536 KB Output is correct
56 Correct 23 ms 17992 KB Output is correct
57 Correct 39 ms 19780 KB Output is correct
58 Correct 49 ms 21196 KB Output is correct
59 Correct 81 ms 24944 KB Output is correct
60 Correct 89 ms 26316 KB Output is correct
61 Correct 93 ms 27852 KB Output is correct
62 Correct 102 ms 29032 KB Output is correct
63 Correct 152 ms 31048 KB Output is correct
64 Correct 147 ms 31564 KB Output is correct
65 Correct 84 ms 70940 KB Output is correct
66 Correct 83 ms 70988 KB Output is correct
67 Correct 74 ms 24228 KB Output is correct
68 Correct 119 ms 53968 KB Output is correct
69 Correct 122 ms 50276 KB Output is correct
70 Correct 123 ms 50124 KB Output is correct
71 Correct 139 ms 43972 KB Output is correct
72 Correct 141 ms 44672 KB Output is correct
73 Correct 124 ms 40788 KB Output is correct
74 Correct 125 ms 44124 KB Output is correct
75 Correct 123 ms 40032 KB Output is correct
76 Correct 127 ms 39828 KB Output is correct
77 Correct 128 ms 39472 KB Output is correct
78 Correct 128 ms 40388 KB Output is correct
79 Correct 112 ms 39504 KB Output is correct