Submission #36405

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
36405	2017-12-08 16:55:00	ToMoClone	Ball Machine (BOI13_ballmachine)	C++14	100 / 100	299 ms	22528 KiB

ballmachine

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/*input
*/
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
const int N = 100001;
priority_queue<pair<int, int>, vector<pair<int, int> >, greater<pair<int, int> > > Empty;
vector<int> child[N];
int n, q, cnt, Min[N], par[17][N], Ball[N], Pos[N];
void dfs(int u){
  for(int v:child[u])
    dfs(v), Min[u] = min(Min[u], Min[v]);
  sort(child[u].begin(), child[u].end(), [&](int a, int b){
    return Min[a] < Min[b];
  });
}
void dfs2(int u){
  for(int v:child[u]) dfs2(v);
  Empty.push(make_pair(Pos[u] = ++cnt, u));
}
int main(){
  scanf("%d%d", &n, &q);
  for(int i = 1; i <= n; ++i){
    int u; scanf("%d", &u);
    child[u].push_back(i);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

ballmachine.cpp: In function 'int main()':
ballmachine.cpp:27:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
                       ^
ballmachine.cpp:29:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int u; scanf("%d", &u);
                         ^
ballmachine.cpp:43:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int type; scanf("%d", &type);
                               ^
ballmachine.cpp:45:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int u, jump = 0; scanf("%d", &u);
                                    ^
ballmachine.cpp:53:44: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int num, LastNode = 0; scanf("%d", &num);
                                            ^

• Subtask 1: 25 / 25
• Subtask 2: 30 / 30
• Subtask 3: 40 / 40
• Subtask 4: 5 / 5