/*
Normie's Template v2.2
Changes:
Added modulo binpow and inverse.
*/
// Standard library in one include.
#include <bits/stdc++.h>
using namespace std;
// ordered_set library.
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set(el) tree<el,null_type,less<el>,rb_tree_tag,tree_order_statistics_node_update>
// AtCoder library. (Comment out these two lines if you're not submitting in AtCoder.) (Or if you want to use it in other judges, run expander.py first.)
//#include <atcoder/all>
//using namespace atcoder;
//Pragmas (Comment out these three lines if you're submitting in szkopul.)
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast,unroll-loops,tree-vectorize")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
//File I/O.
#define FILE_IN "cseq.inp"
#define FILE_OUT "cseq.out"
#define ofile freopen(FILE_IN,"r",stdin);freopen(FILE_OUT,"w",stdout)
//Fast I/O.
#define fio ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define nfio cin.tie(0);cout.tie(0)
#define endl "\n"
//Order checking.
#define ord(a,b,c) ((a>=b)and(b>=c))
//min/max redefines, so i dont have to resolve annoying compile errors.
#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))
// Fast min/max assigns to use with AVX.
// Requires g++ 9.2.0.
template<typename T>
__attribute__((always_inline)) void chkmin(T& a, const T& b) {
a=(a<b)?a:b;
}
template<typename T>
__attribute__((always_inline)) void chkmax(T& a, const T& b) {
a=(a>b)?a:b;
}
//Constants.
#define MOD (ll(998244353))
#define MAX 300001
#define mag 320
const long double PI=3.14159265358979;
//Pairs and 3-pairs.
#define p1 first
#define p2 second.first
#define p3 second.second
#define fi first
#define se second
#define pii(element_type) pair<element_type,element_type>
#define piii(element_type) pair<element_type,pii(element_type)>
//Quick power of 2.
#define pow2(x) (ll(1)<<x)
//Short for-loops.
#define ff(i,__,___) for(int i=__;i<=___;i++)
#define rr(i,__,___) for(int i=__;i>=___;i--)
//Typedefs.
#define bi BigInt
typedef long long ll;
typedef long double ld;
typedef short sh;
// Binpow and stuff
ll BOW(ll a, ll x, ll p)
{
if (!x) return 1;
ll res=BOW(a,x/2,p);
res*=res;
res%=p;
if (x%2) res*=a;
return res%p;
}
ll INV(ll a, ll p)
{
return BOW(a,p-2,p);
}
//---------END-------//
#include "floppy.h"
int rmq[200001][20];
vector<int> vv;
string kek;
void build(int l, int r, int k)
{
// cout<<"build "<<l<<' '<<r<<' '<<k<<endl;
if (l>r) return;
kek.push_back(char(k+48));
int u=floor(log2(r-l+1));
int a=rmq[l][u];
int b=rmq[r-(1<<u)+1][u],c;
if (vv[a]<vv[b]) c=b;
else c=a;
build(l,c-1,k^1);
kek.push_back(char(k+48));
build(c+1,r,k);
}
void read_array(int subtask_id, const std::vector<int> &v) {
int n=v.size(),i,j;
vv=v;
for (i=0;i<n;i++) rmq[i][0]=i;
for (i=1;i<20;i++)
{
for (j=0;j<n;j++)
{
rmq[j][i]=rmq[j][i-1];
if ((j+(1<<(i-1))<n)and(vv[rmq[j][i]]<vv[rmq[j+(1<<(i-1))][i-1]])) rmq[j][i]=rmq[j+(1<<(i-1))][i-1];
}
}
kek="";
build(0,n-1,0);
// cout<<kek<<endl;
save_to_floppy(kek);
}
vector<int> pr;
vector<int> sta;
void build2(int sl, int sr, int vl, int vr, int d)
{
// cout<<"build2 "<<sl<<' '<<sr<<' '<<vl<<' '<<vr<<' '<<d<<endl;
if ((sl>sr)or(vl>vr)) return;
int a=pr[sl];
int b=vl+(a-sl-1)/2;
vv[b]=-d;
build2(sl+1,a-1,vl,b-1,d+1);
build2(a+1,sr,b+1,vr,d+1);
}
std::vector<int> solve_queries(int subtask_id, int N,
const std::string &bits,
const std::vector<int> &a, const std::vector<int> &b)
{
int n=N,i,j,u,aa,bb;
pr=vector<int>(2*N,0);
vv=vector<int>(n,0);
for (i=0;i<2*n;i++)
{
if ((sta.size())and(bits[sta[sta.size()-1]]==bits[i]))
{
pr[sta[sta.size()-1]]=i;
sta.pop_back();
}
else sta.push_back(i);
}
build2(0,2*n-1,0,n-1,0);
for (i=0;i<n;i++) rmq[i][0]=i;
for (i=1;i<20;i++)
{
for (j=0;j<n;j++)
{
rmq[j][i]=rmq[j][i-1];
if ((j+(1<<(i-1))<n)and(vv[rmq[j][i]]<vv[rmq[j+(1<<(i-1))][i-1]])) rmq[j][i]=rmq[j+(1<<(i-1))][i-1];
}
}
// for (i=0;i<n;i++) cout<<vv[i]<<' '; cout<<endl;
vector<int> lol;
for (i=0;i<a.size();i++)
{
u=floor(log2(b[i]-a[i]+1));
aa=rmq[a[i]][u];
bb=rmq[b[i]-(1<<u)+1][u];
if (vv[aa]>vv[bb]) lol.push_back(aa);
else lol.push_back(bb);
}
return lol;
}
Compilation message
floppy.cpp:22: warning: ignoring #pragma comment [-Wunknown-pragmas]
22 | #pragma comment(linker, "/stack:200000000")
|
floppy.cpp: In function 'std::vector<int> solve_queries(int, int, const string&, const std::vector<int>&, const std::vector<int>&)':
floppy.cpp:180:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
180 | for (i=0;i<a.size();i++)
| ~^~~~~~~~~
stub.cpp: In function 'void run2()':
stub.cpp:101:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
101 | if (query_answers.size() != M) {
| ~~~~~~~~~~~~~~~~~~~~~^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
768 KB |
Output is correct |
| 2 |
Correct |
3 ms |
780 KB |
Output is correct |
| 3 |
Correct |
3 ms |
768 KB |
Output is correct |
| 4 |
Correct |
3 ms |
776 KB |
Output is correct |
| 5 |
Correct |
3 ms |
768 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
31 ms |
4352 KB |
Output is correct |
| 2 |
Correct |
31 ms |
4396 KB |
Output is correct |
| 3 |
Correct |
30 ms |
4248 KB |
Output is correct |
| 4 |
Correct |
31 ms |
4408 KB |
Output is correct |
| 5 |
Correct |
28 ms |
4188 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
119 ms |
14908 KB |
Output is correct |
| 2 |
Correct |
115 ms |
14840 KB |
Output is correct |
| 3 |
Correct |
117 ms |
14908 KB |
Output is correct |
| 4 |
Correct |
115 ms |
15976 KB |
Output is correct |
| 5 |
Correct |
118 ms |
15244 KB |
Output is correct |
