Submission #242257

#	Time	Username	Problem	Language	Result	Execution time	Memory
242257		tqbfjotld	Magic Tree (CEOI19_magictree)	C++14	3 / 100	59 ms	2040 KiB

magictree

/*
subtask 1 - brute force
subtask 2 - take all
subtask 3 - lds
subtask 4 - dp on tree, day1-day2
*/

#include <bits/stdc++.h>
using namespace std;

int n,m,k;
int p[100005];
int d[100005];
long long w[100005];

int main(){
    scanf("%d%d%d",&n,&m,&k);
    for (int x = 1; x<n; x++){
        scanf("%d",&p[x]);
        p[x]--;
    }
    for (int x = 0; x<m; x++){
        int a,b;
        long long c;
        scanf("%d%d%lld",&a,&b,&c);
        a--;
        d[a] = b;
        w[a] = c;
    }
    long long ans = 0;
    for (int x = 0; x<n; x++){
        ans += w[x];
    }
    printf("%lld",ans);

}

Compilation message (stderr)

magictree.cpp: In function 'int main()':
magictree.cpp:17:10: 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:19:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&p[x]);
         ~~~~~^~~~~~~~~~~~
magictree.cpp:25:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%lld",&a,&b,&c);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 3 / 3
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 16
• Subtask 6: 0 / 13
• Subtask 7: 0 / 22
• Subtask 8: 0 / 17