Submission #909270

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
909270	2024-01-17 06:42:10	lighton	Magic Tree (CEOI19_magictree)	C++17	100 / 100	185 ms	54492 KiB

magictree

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#include<bits/stdc++.h>
#define forf(i,a,b) for(int i = a; i<=b; i++)
#define all(v) v.begin(),v.end()
using namespace std;
typedef long long ll;
int N,M,K;
int inf = 1e9;
struct ST{
    int t; ll v; int id;
    bool operator<(const ST &r) const{
        if(t==r.t) return id<r.id;
        return t<r.t;
    }
};
vector<int> adj[200001];
ST upd[200001];
void merg (set<ST> &a, set<ST> b){
    for(ST i : b) a.insert(i);
}
void add (set<ST> &now, ST a){
    ST tmp = a; tmp.id = inf;
    now.insert(a);
    auto it = now.upper_bound(tmp);
    ll sum = 0; int flag = 0;
    ST nxt;
    while(it != now.end() && sum <= a.v){
        sum += it->v;
        if(sum > a.v){
            nxt = *it;
            flag = 1;
 
 
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Compilation message (stderr)

magictree.cpp: In function 'int main()':
magictree.cpp:69:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |     scanf("%d %d %d" , &N,&M,&K);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
magictree.cpp:71:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   71 |         int t; scanf("%d" , &t);
      |                ~~~~~^~~~~~~~~~~
magictree.cpp:76:29: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |         int u,t; ll v; scanf("%d %d %lld" , &u,&t, &v);
      |                        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

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