Submission #107073

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
107073	2019-04-21 17:17:01	thebes	Long Mansion (JOI17_long_mansion)	C++14	100 / 100	1926 ms	56596 KiB

long_mansion

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#include <bits/stdc++.h>
using namespace std;
const int MN = 5e5+5;
int N, Q, t, i, x, y, l[MN], r[MN], c[MN], pre[MN], suf[MN], st[3*MN], lst[MN];
vector<int> a[MN];
void build(int i,int s,int e){
    if(s!=e){
        build(2*i,s,(s+e)/2);
        build(2*i+1,(s+e)/2+1,e);
        st[i]=min(st[2*i],st[2*i+1]);
    }
    else st[i]=pre[s];
}
int qu(int i,int s,int e,int ss,int se){
    if(s>=ss&&e<=se) return st[i];
    else if((s+e)/2<ss) return qu(2*i+1,(s+e)/2+1,e,ss,se);
    else if((s+e)/2>=se) return qu(2*i,s,(s+e)/2,ss,se);
    else return min(qu(2*i,s,(s+e)/2,ss,se),qu(2*i+1,(s+e)/2+1,e,ss,se));
}
int main(){
    for(scanf("%d",&N),i=1;i<N;i++) scanf("%d",&c[i]);
    for(i=1;i<=N;i++){
        scanf("%d",&t);
        while(t--) scanf("%d",&x), a[i].push_back(x);
    }
    for(i=1;i<N;i++){
 
 
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Compilation message (stderr)

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:25:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%d",&N),i=1;i<N;i++) scanf("%d",&c[i]);
         ~~~~~~~~~~~~~~^~~~
long_mansion.cpp:25:42: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%d",&N),i=1;i<N;i++) scanf("%d",&c[i]);
                                     ~~~~~^~~~~~~~~~~~
long_mansion.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&t);
         ~~~~~^~~~~~~~~
long_mansion.cpp:28:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         while(t--) scanf("%d",&x), a[i].push_back(x);
                    ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
long_mansion.cpp:60:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%d",&Q);Q;Q--){
         ~~~~~^~~~~~~~~
long_mansion.cpp:61:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&x,&y);
         ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 75 / 75