Submission #729020

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
729020	2023-04-23 11:54:57	MilosMilutinovic	Tourism (JOI23_tourism)	C++14	100 / 100	875 ms	24912 KiB

tourism

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#include <bits/stdc++.h>
using namespace std;
int n,m,q,c[100005],sz[100005],dep[100005];
vector<int> g[100005];
vector<pair<int,int>> qs[100005];
int son[100005],head[100005],pos[100005],pv,pr[100005];
int ans[100005];
void dfs(int x,int fa)
{
    sz[x]=1;pr[x]=fa;
    dep[x]=dep[fa]+1;
    int mx=0;
    for(int y:g[x])
    {
        if(y==fa) continue;
        dfs(y,x);sz[x]+=sz[y];
        if(sz[y]>mx)mx=sz[y],son[x]=y;
    }
}
void build(int x,int fa,int c)
{
    head[x]=c;pos[x]=++pv;
    if(son[x])build(son[x],x,c);
    for(int y:g[x])
        if(y!=fa&&y!=son[x])
            build(y,x,y);
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tourism.cpp: In function 'int main()':
tourism.cpp:73:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |     scanf("%d%d%d",&n,&m,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
tourism.cpp:76:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   76 |         int a,b;scanf("%d%d",&a,&b);
      |                 ~~~~~^~~~~~~~~~~~~~
tourism.cpp:82:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   82 |     for(int i=1;i<=m;i++) scanf("%d",&c[i]);
      |                           ~~~~~^~~~~~~~~~~~
tourism.cpp:85:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |         int l,r;scanf("%d%d",&l,&r);
      |                 ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 7 / 7
• Subtask 4: 18 / 18
• Subtask 5: 24 / 24
• Subtask 6: 41 / 41