| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 101102 |
2019-03-16T15:58:18 Z |
Benq |
Dojave (COCI17_dojave) |
C++14 |
|
3726 ms |
65056 KB |
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= (a); i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto& a : x)
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define beg(x) x.begin()
#define en(x) x.end()
#define all(x) beg(x), en(x)
#define resz resize
const int MOD = 1000000007; // 998244353
const ll INF = 1e18;
const int MX = 100001;
const ld PI = 4*atan((ld)1);
template<class T> void ckmin(T &a, T b) { a = min(a, b); }
template<class T> void ckmax(T &a, T b) { a = max(a, b); }
template<class A, class B> A operator+=(A& l, const B& r) { return l = l+r; }
template<class A, class B> A operator-=(A& l, const B& r) { return l = l-r; }
template<class A, class B> A operator*=(A& l, const B& r) { return l = l*r; }
template<class A, class B> A operator/=(A& l, const B& r) { return l = l/r; }
namespace input {
template<class T> void re(complex<T>& x);
template<class T1, class T2> void re(pair<T1,T2>& p);
template<class T> void re(vector<T>& a);
template<class T, size_t SZ> void re(array<T,SZ>& a);
template<class T> void re(T& x) { cin >> x; }
void re(double& x) { string t; re(t); x = stod(t); }
void re(ld& x) { string t; re(t); x = stold(t); }
template<class Arg, class... Args> void re(Arg& first, Args&... rest) {
re(first); re(rest...);
}
template<class T> void re(complex<T>& x) { T a,b; re(a,b); x = cd(a,b); }
template<class T1, class T2> void re(pair<T1,T2>& p) { re(p.f,p.s); }
template<class T> void re(vector<T>& a) { F0R(i,sz(a)) re(a[i]); }
template<class T, size_t SZ> void re(array<T,SZ>& a) { F0R(i,SZ) re(a[i]); }
}
using namespace input;
namespace output {
template<class T1, class T2> void pr(const pair<T1,T2>& x);
template<class T, size_t SZ> void pr(const array<T,SZ>& x);
template<class T> void pr(const vector<T>& x);
template<class T> void pr(const set<T>& x);
template<class T1, class T2> void pr(const map<T1,T2>& x);
template<class T> void pr(const T& x) { cout << x; }
template<class Arg, class... Args> void pr(const Arg& first, const Args&... rest) {
pr(first); pr(rest...);
}
template<class T1, class T2> void pr(const pair<T1,T2>& x) {
pr("{",x.f,", ",x.s,"}");
}
template<class T> void prContain(const T& x) {
pr("{");
bool fst = 1; trav(a,x) pr(!fst?", ":"",a), fst = 0;
pr("}");
}
template<class T, size_t SZ> void pr(const array<T,SZ>& x) { prContain(x); }
template<class T> void pr(const vector<T>& x) { prContain(x); }
template<class T> void pr(const set<T>& x) { prContain(x); }
template<class T1, class T2> void pr(const map<T1,T2>& x) { prContain(x); }
void ps() { pr("\n"); }
template<class Arg, class... Args> void ps(const Arg& first, const Args&... rest) {
pr(first," "); ps(rest...); // print w/ spaces
}
}
using namespace output;
namespace io {
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
void setIO(string s = "") {
ios_base::sync_with_stdio(0); cin.tie(0); // fast I/O
if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
}
}
using namespace io;
template<class T> T invGeneral(T a, T b) {
a %= b; if (a == 0) return b == 1 ? 0 : -1;
T x = invGeneral(b,a);
return x == -1 ? -1 : ((1-(ll)b*x)/a+b)%b;
}
template<class T> struct modInt {
T val;
T mod = 0;
// static const T mod = MOD;
void normalize() {
if (mod == 0) return;
val %= mod; if (val < 0) val += mod;
}
modInt(T v = 0, T m = 0) : val(v), mod(m) { normalize(); }
// modInt(T v = 0, T m = 0) : val(v) { normalize(); }
explicit operator T() const { return val; }
friend ostream& operator<<(ostream& os, const modInt& a) { return os << a.val; }
friend bool operator==(const modInt& a, const modInt& b) { return a.val == b.val; }
friend bool operator!=(const modInt& a, const modInt& b) { return !(a == b); }
friend void check(modInt& a, modInt& b) { // make sure all operations are valid
// comment out if mod is static const
if (a.mod > 0 && b.mod > 0) { assert(a.mod == b.mod); return; }
T mod = max(a.mod,b.mod); if (mod == 0) mod = MOD;
if (a.mod != mod) { a.mod = mod; a.normalize(); }
if (b.mod != mod) { b.mod = mod; b.normalize(); }
}
friend modInt operator+(modInt a, modInt b) {
check(a,b); a.val += (T)b;
if (a.val >= a.mod) a.val -= a.mod;
return a;
}
friend modInt operator-(modInt a, modInt b) {
check(a,b); a.val -= (T)b;
if (a.val < 0) a.val += a.mod;
return a;
}
friend modInt operator-(const modInt& a) { return modInt(0)-a; }
friend modInt operator*(modInt a, modInt b) {
check(a,b); a.val = (ll)a.val*(T)b%a.mod; return a;
}
friend modInt exp(modInt a, ll p) {
modInt ans(1,a.mod);
for (; p; p /= 2, a *= a) if (p&1) ans *= a;
return ans;
}
friend modInt inv(const modInt& a) {
return {invGeneral(a.val,a.mod),a.mod};
// return exp(b,b.mod-2) if prime
}
friend modInt operator/(modInt a, modInt b) {
check(a,b); return a*inv(b);
}
};
typedef modInt<int> mi;
typedef pair<mi,mi> pmi;
typedef vector<mi> vmi;
typedef vector<pmi> vpmi;
template<class T, int SZ> struct LazySegTree {
T mn[2*SZ];
int lazy[2*SZ]; // set SZ to a power of 2
T comb(const T& a, const T& b) {
if (a.f != b.f) return min(a,b);
T c; c.f = a.f;
F0R(i,4) c.s[i] = a.s[i]+b.s[i];
return c;
}
void pull(int ind) {
mn[ind] = comb(mn[2*ind],mn[2*ind+1]);
}
void build(int ind, int L, int R) {
if (L == R) {
mn[ind].s[ind%4] = 1;
return;
}
int M = (L+R)/2;
build(2*ind,L,M); build(2*ind+1,M+1,R);
pull(ind);
}
void push(int ind, int L, int R) {
mn[ind].f += lazy[ind];
if (L != R) lazy[2*ind] += lazy[ind], lazy[2*ind+1] += lazy[ind];
lazy[ind] = 0;
}
pi qmin(int lo, int hi, int off, int ind = 1, int L = 0, int R = SZ-1) {
push(ind,L,R);
if (lo > R || L > hi) return {MOD,0};
if (lo <= L && R <= hi) {
if (mn[ind].s[off]) return {mn[ind].f,mn[ind].s[off]};
return {MOD,0};
}
int M = (L+R)/2;
auto x = qmin(lo,hi,off,2*ind,L,M), y = qmin(lo,hi,off,2*ind+1,M+1,R);
if (x.f != y.f) return min(x,y);
return {x.f,x.s+y.s};
}
void upd(int lo, int hi, ll inc, int ind = 1, int L = 0, int R = SZ-1) {
push(ind,L,R);
if (hi < L || R < lo) return;
if (lo <= L && R <= hi) {
lazy[ind] = inc;
push(ind,L,R);
return;
}
int M = (L+R)/2;
upd(lo,hi,inc,2*ind,L,M); upd(lo,hi,inc,2*ind+1,M+1,R);
pull(ind);
}
};
LazySegTree<pair<int,array<int,4>>,1<<20> L;
int M,x[1<<20],pos[1<<20],des;
ll ans;
int main() {
setIO(); re(M);
if (M == 1) { pr(2); exit(0); }
des = (1<<M)-1;
F0R(i,1<<M) {
re(x[i]);
pos[x[i]] = i;
}
L.build(1,0,(1<<20)-1);
// divisible by 4
F0R(i,1<<M) if (pos[i] < pos[des^i]) L.upd(pos[i],pos[des^i]-1,1);
// ps(L.mn[1]);
ans = 1<<M; ans = ans*(ans+1)/2;
F0R(i,1<<M) {
auto a = L.qmin(i,des,(i+3)%4);
if (a.f == 0) ans -= a.s;
if (i < pos[des^x[i]]) {
L.upd(i,pos[des^x[i]]-1,-1);
L.upd(pos[des^x[i]],des,1);
} else {
L.upd(i,des,-1);
// ps("WHAT",i,des);
}
}
ps(ans);
// l > a, r < b
// l <= a, r >= b
}
/* stuff you should look for
* int overflow, array bounds
* special cases (n=1?), set tle
* do smth instead of nothing and stay organized
*/
Compilation message
dojave.cpp: In function 'void io::setIn(std::__cxx11::string)':
dojave.cpp:117:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~
dojave.cpp: In function 'void io::setOut(std::__cxx11::string)':
dojave.cpp:118:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
36 ms |
41472 KB |
Output is correct |
| 2 |
Correct |
59 ms |
41392 KB |
Output is correct |
| 3 |
Correct |
34 ms |
41428 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
59 ms |
41464 KB |
Output is correct |
| 2 |
Correct |
49 ms |
41464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
86 ms |
41616 KB |
Output is correct |
| 2 |
Correct |
59 ms |
41464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
76 ms |
41748 KB |
Output is correct |
| 2 |
Correct |
67 ms |
41564 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
113 ms |
41720 KB |
Output is correct |
| 2 |
Correct |
75 ms |
41724 KB |
Output is correct |
| 3 |
Correct |
70 ms |
41764 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
204 ms |
42616 KB |
Output is correct |
| 2 |
Correct |
146 ms |
42488 KB |
Output is correct |
| 3 |
Correct |
315 ms |
43512 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
271 ms |
42532 KB |
Output is correct |
| 2 |
Correct |
283 ms |
43512 KB |
Output is correct |
| 3 |
Correct |
424 ms |
45680 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
778 ms |
45732 KB |
Output is correct |
| 2 |
Correct |
594 ms |
45660 KB |
Output is correct |
| 3 |
Correct |
535 ms |
45560 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3726 ms |
57820 KB |
Output is correct |
| 2 |
Correct |
2798 ms |
57920 KB |
Output is correct |
| 3 |
Correct |
1554 ms |
57976 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3625 ms |
57836 KB |
Output is correct |
| 2 |
Correct |
1967 ms |
65048 KB |
Output is correct |
| 3 |
Correct |
1575 ms |
64888 KB |
Output is correct |
| 4 |
Correct |
3472 ms |
65056 KB |
Output is correct |
