Submission #919356

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
919356	2024-01-31 16:13:40	imarn	Mergers (JOI19_mergers)	C++14	70 / 100	3058 ms	108748 KiB

mergers

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#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vvi vector<vi>
#define vp vector<pii>
using namespace std;
const int N=5e5+5;
vector<int>g[N];
set<int>gg[N];
int sz[N],id[N],pr[N],head[N],dep[N],cur=0,t[4*N],lz[4*N],pos[N],cp=1,n;
void push(int i,int l,int r){
    if(lz[i]==1e9)return;
    t[i]=min(t[i],lz[i]);
    if(l<r){
        lz[2*i]=min(lz[2*i],lz[i]);
        lz[2*i+1]=min(lz[2*i+1],lz[i]);
    }lz[i]=1e9;
}
void upd(int i,int l,int r,int tl,int tr,int id){
    push(i,l,r);
    if(r<tl||l>tr)return;
    if(r<=tr&&l>=tl){
        lz[i]=min(lz[i],id);push(i,l,r);
        return;
 
 
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Compilation message (stderr)

mergers.cpp: In function 'void dfssz(int, int, int)':
mergers.cpp:61:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   61 |         if(v==p)continue;dfssz(v,u,l+1);
      |         ^~
mergers.cpp:61:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   61 |         if(v==p)continue;dfssz(v,u,l+1);
      |                          ^~~~~
mergers.cpp: In function 'int main()':
mergers.cpp:89:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |         for(int j=0;j<gr[i].size();j++)res=min(res,query(top,gr[i][j]));
      |                     ~^~~~~~~~~~~~~
mergers.cpp:90:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |         for(int j=0;j<gr[i].size();j++)update(top,gr[i][j],res);
      |                     ~^~~~~~~~~~~~~
mergers.cpp:96:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   96 |         for(int j=0;j<gr[i].size();j++)res=min(res,query(top,gr[i][j]));
      |                     ~^~~~~~~~~~~~~
mergers.cpp:97:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |         for(int j=0;j<gr[i].size();j++)update(top,gr[i][j],res);
      |                     ~^~~~~~~~~~~~~
mergers.cpp:102:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |         for(int j=0;j<gr[i].size();j++)res=min(res,query(top,gr[i][j]));
      |                     ~^~~~~~~~~~~~~
mergers.cpp:103:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |         for(int j=0;j<gr[i].size();j++)update(top,gr[i][j],res);
      |                     ~^~~~~~~~~~~~~
mergers.cpp:84:35: warning: unused variable 'ok' [-Wunused-variable]
   84 |     }dfssz(1,1,0);hld(1,1,1);bool ok=1;
      |                                   ^~

• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 14 / 14
• Subtask 4: 22 / 22
• Subtask 5: 0 / 30