Poistot

input/code.cpp: In function 'int main()':
input/code.cpp:30:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |             mid=l+r>>1;
      |                 ~^~
input/code.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for(int j=1;j<li[i].size();j++){
      |                     ~^~~~~~~~~~~~~

#include <bits/stdc++.h>

using namespace std;
#define ll long long
#define lbit(u) (u&(-u))

const int N=200009;

vector<int> li[N];
int sz=1;


int n;

int main(){
    cin>>n;
    int fi;
    cin>>fi;
    li[0].push_back(fi);
    for(int i=2;i<=n;i++){
        int a;
        cin>>a;
        if(a<=li[sz-1][li[sz-1].size()-1]){
            sz++;
            li[sz-1].push_back(a);
            continue;
        }
        int l=0,r=sz,mid=0;
        while(l<r){
            mid=l+r>>1;
            if(li[mid][li[mid].size()-1]>=a){
                l=mid+1;
            }
            else r=mid;
        }
        li[l].push_back(a);
    }
    cout<<sz<<endl;
    for(int i=0;i<sz;i++){
        cout<<li[i][0];
        for(int j=1;j<li[i].size();j++){
            cout<<' '<<li[i][j];
        }
        cout<<endl;
    }
    return 0;
}

/*

*/

Test 1

Group: 1, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 3

Verdict: ACCEPTED

Test 4

Group: 1, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: ACCEPTED

Test 6

Group: 2, 3

Verdict: ACCEPTED

Test 7

Group: 3

Verdict: ACCEPTED

Test 8

Group: 3

Verdict: ACCEPTED

Test 9

Group: 3

Verdict: ACCEPTED

Test 10

Group: 3

Verdict: ACCEPTED