#include "bits/stdc++.h"
using namespace std;
#define int long long
const int MAXN = 1e6 + 10;
const int MOD = 998244353;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
if(p==0) return 1 % MOD;
int r = bm(b, p >> 1);
if(p&1) return (((r*r) % MOD) * b) % MOD;
return (r*r) % MOD;
}
int inv(int b) {
return bm(b, MOD-2);
}
int fastlog(int x) {
return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
void solve(int tc){
int n;
cin>>n;
int p[n+1];
for(int i=1;i<=n;i++)cin>>p[i];
int dp[n+1];
int bucket[n+1];
for(int i=1;i<=n;i++)bucket[i]=1e9,dp[i]=1;
for(int i=1;i<=n;i++){
auto it=lower_bound(bucket+1,bucket+1+n,p[i]);
dp[i]=distance(bucket,it);
bucket[dp[i]]=min(bucket[dp[i]],p[i]);
}
int lis=0;
for(int i=1;i<=n;i++)lis=max(lis,dp[i]);
int pos[n+1];
for(int i=1;i<=n;i++)pos[p[i]]=i;
bool used[n+1];
for(int i=1;i<=n;i++)used[i]=0;
set<int>all[n+1];
for(int i=1;i<=n;i++)all[dp[i]].insert(i);
vector<vector<int>>ans;
while(1){
vector<int>v;
for(int i=lis;i>=1;i--){
while(all[i].size()){
if(i==lis || p[*all[i].begin()]<p[v.back()]) {
v.push_back(*all[i].begin());
all[i].erase(all[i].begin());
break;
}
else {
all[i].erase(all[i].begin());
}
}
}
if(v.size()!=lis)break;
reverse(v.begin(),v.end());
ans.push_back(v);
}
cout<<ans.size()<<" "<<lis<<"\n";
for(vector<int>v:ans){
for(int x:v)cout<<x<<" ";
cout<<"\n";
}
}
int32_t main() {
ios::sync_with_stdio(0); cin.tie(0);
int t = 1; //cin >> t;
for(int i=1; i<=t; i++) solve(i);
}
// 勿忘初衷
Compilation message
Main.cpp: In function 'void solve(long long int)':
Main.cpp:59:16: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
59 | if(v.size()!=lis)break;
| ~~~~~~~~^~~~~
Main.cpp:38:7: warning: variable 'pos' set but not used [-Wunused-but-set-variable]
38 | int pos[n+1];
| ^~~
Main.cpp:40:8: warning: variable 'used' set but not used [-Wunused-but-set-variable]
40 | bool used[n+1];
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
340 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
340 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
340 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
