oj.uz

Submission #242316

# Submission time Handle Problem Language Result Execution time Memory
242316 2020-06-27T08:45:32 Z dantoh000 Magic Tree (CEOI19_magictree) C++14
14 / 100
 70 ms 6908 KB 
#include <bits/stdc++.h>
using namespace std;
int n,m,k;
int p[100005];
vector<int> G[100005];
int a[100005];
int L[100005];
bool isline = 1;
long long LEAFANS = 0;
int main(){
    scanf("%d%d%d",&n,&m,&k);
    for (int i = 2; i <= n; i++){
        scanf("%d",&p[i]);
        G[p[i]].push_back(i);
        if (p[i] != i-1) isline = false;
    }
    for (int i = 0; i < m; i++){
        int v,d,w;
        scanf("%d%d%d",&v,&d,&w);
        a[v] = d;
        LEAFANS += w;
    }
    if (isline){
        int ans = 0;
        for (int i = 0; i <= n; i++) L[i] = 1000000005;
        for (int i = n; i >= 1; i--){
            if (a[i] == 0) continue;
            int pos = upper_bound(L,L+ans,a[i])-L;
            //printf("%d goes %d\n",a[i],pos);
            L[pos] = a[i];
            ans = max(ans,pos+1);
        }
        printf("%d",ans);
    }
    else printf("%lld\n",LEAFANS);
    //dfs(1,-1);
    //printf("%d",dp1[];
}

Compilation message

magictree.cpp: In function 'int main()':
magictree.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&m,&k);
     ~~~~~^~~~~~~~~~~~~~~~~~~
magictree.cpp:13:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&p[i]);
         ~~~~~^~~~~~~~~~~~
magictree.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d",&v,&d,&w);
         ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 4832 KB Output is correct
2 Correct 37 ms 5624 KB Output is correct
3 Correct 63 ms 4088 KB Output is correct
4 Correct 53 ms 3960 KB Output is correct
5 Correct 61 ms 4216 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 56 ms 6904 KB Output is correct
5 Correct 58 ms 6904 KB Output is correct
6 Correct 62 ms 6908 KB Output is correct

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 70 ms 5112 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 3200 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -