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Submission #252995

# Submission time Handle Problem Language Result Execution time Memory
252995 2020-07-26T15:20:56 Z rqi Bubble Sort 2 (JOI18_bubblesort2) C++14
38 / 100
 9000 ms 2736 KB 
//#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef long double ld;
typedef double db; 
typedef string str; 

typedef pair<int,int> pi;
typedef pair<ll,ll> pl; 
typedef pair<db,db> pd; 

typedef vector<int> vi; 
typedef vector<ll> vl; 
typedef vector<db> vd; 
typedef vector<str> vs; 
typedef vector<pi> vpi;
typedef vector<pl> vpl; 
typedef vector<pd> vpd; 

#define mp make_pair
#define f first
#define s second
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend() 
#define rsz resize
#define ins insert 
#define ft front() 
#define bk back()
#define pf push_front 
#define pb push_back
#define eb emplace_back 
#define lb lower_bound 
#define ub upper_bound 

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

const int MOD = 1e9+7; // 998244353;
const int MX = 2e5+5; 
const ll INF = 1e18; 
const ld PI = acos((ld)-1);
const int xd[4] = {1,0,-1,0}, yd[4] = {0,1,0,-1}; 
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count()); 

template<class T> bool ckmin(T& a, const T& b) { 
	return b < a ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { 
	return a < b ? a = b, 1 : 0; } 
int pct(int x) { return __builtin_popcount(x); } 
int bits(int x) { return 31-__builtin_clz(x); } // floor(log2(x)) 
int cdiv(int a, int b) { return a/b+!(a<0||a%b == 0); } // division of a by b rounded up, assumes b > 0 
int fstTrue(function<bool(int)> f, int lo, int hi) {
	hi ++; assert(lo <= hi); // assuming f is increasing
	while (lo < hi) { // find first index such that f is true 
		int mid = (lo+hi)/2; 
		f(mid) ? hi = mid : lo = mid+1; 
	} 
	return lo;
}

// INPUT
template<class A> void re(complex<A>& c);
template<class A, class B> void re(pair<A,B>& p);
template<class A> void re(vector<A>& v);
template<class A, size_t SZ> void re(array<A,SZ>& a);

template<class T> void re(T& x) { cin >> x; }
void re(db& d) { str t; re(t); d = stod(t); }
void re(ld& d) { str t; re(t); d = stold(t); }
template<class H, class... T> void re(H& h, T&... t) { re(h); re(t...); }

template<class A> void re(complex<A>& c) { A a,b; re(a,b); c = {a,b}; }
template<class A, class B> void re(pair<A,B>& p) { re(p.f,p.s); }
template<class A> void re(vector<A>& x) { trav(a,x) re(a); }
template<class A, size_t SZ> void re(array<A,SZ>& x) { trav(a,x) re(a); }

// TO_STRING
#define ts to_string
str ts(char c) { return str(1,c); }
str ts(bool b) { return b ? "true" : "false"; }
str ts(const char* s) { return (str)s; }
str ts(str s) { return s; }
template<class A> str ts(complex<A> c) { 
	stringstream ss; ss << c; return ss.str(); }
str ts(vector<bool> v) { 
	str res = "{"; F0R(i,sz(v)) res += char('0'+v[i]);
	res += "}"; return res; }
template<size_t SZ> str ts(bitset<SZ> b) {
	str res = ""; F0R(i,SZ) res += char('0'+b[i]);
	return res; }
template<class A, class B> str ts(pair<A,B> p);
template<class T> str ts(T v) { // containers with begin(), end()
	bool fst = 1; str res = "{";
	for (const auto& x: v) {
		if (!fst) res += ", ";
		fst = 0; res += ts(x);
	}
	res += "}"; return res;
}
template<class A, class B> str ts(pair<A,B> p) {
	return "("+ts(p.f)+", "+ts(p.s)+")"; }

// OUTPUT
template<class A> void pr(A x) { cout << ts(x); }
template<class H, class... T> void pr(const H& h, const T&... t) { 
	pr(h); pr(t...); }
void ps() { pr("\n"); } // print w/ spaces
template<class H, class... T> void ps(const H& h, const T&... t) { 
	pr(h); if (sizeof...(t)) pr(" "); ps(t...); }

// DEBUG
void DBG() { cerr << "]" << endl; }
template<class H, class... T> void DBG(H h, T... t) {
	cerr << ts(h); if (sizeof...(t)) cerr << ", ";
	DBG(t...); }
#ifdef LOCAL // compile with -DLOCAL
#define dbg(...) cerr << "LINE(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif

// FILE I/O
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
void unsyncIO() { ios_base::sync_with_stdio(0); cin.tie(0); }
void setIO(string s = "") {
	unsyncIO();
	// cin.exceptions(cin.failbit); 
	// throws exception when do smth illegal
	// ex. try to read letter into int
	if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
}



vi countScans(vi A, vi X, vi V){
	int N = sz(A);
	int Q = sz(X);
	//seg.init(N+Q+5);

	map<int, int> m;
	for(auto u: A){
		m[u];
	}
	for(auto u: V){
		m[u];
	}

	int cnt = 0;
	for(auto &u: m){
		u.s = ++cnt;
	}
	for(auto &u: A){
		u = m[u];
	}
	for(auto &u: V){
		u = m[u];
	}

	vi answer(Q);

	for(int j = 0; j < Q; j++){
		A[X[j]] = V[j];
		int ans = 0;
		vpi v;
		for(int i = 0; i < N; i++){
			v.pb(mp(A[i], i));
		}
		sort(all(v));
		for(int i = 0; i < sz(v); i++){
			ckmax(ans, sz(v)-1-i-(N-v[i].s-1));
		}
		answer[j] = ans;
	}

	return answer;
}

// int main(){
// 	ps(countScans(vi{1, 2, 3, 4}, vi{0, 2}, vi{3, 1}));
// }

Compilation message

bubblesort2.cpp: In function 'void setIn(std::__cxx11::string)':
bubblesort2.cpp:129:31: 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); }
                        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
bubblesort2.cpp: In function 'void setOut(std::__cxx11::string)':
bubblesort2.cpp:130:32: 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); }
                         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 384 KB Output is correct
2 Correct 46 ms 504 KB Output is correct
3 Correct 274 ms 688 KB Output is correct
4 Correct 271 ms 640 KB Output is correct
5 Correct 267 ms 688 KB Output is correct
6 Correct 197 ms 640 KB Output is correct
7 Correct 243 ms 640 KB Output is correct
8 Correct 246 ms 640 KB Output is correct
9 Correct 261 ms 640 KB Output is correct
10 Correct 182 ms 640 KB Output is correct
11 Correct 184 ms 640 KB Output is correct
12 Correct 175 ms 764 KB Output is correct
13 Correct 184 ms 640 KB Output is correct
14 Correct 173 ms 640 KB Output is correct
15 Correct 193 ms 640 KB Output is correct
16 Correct 166 ms 632 KB Output is correct
17 Correct 168 ms 632 KB Output is correct
18 Correct 182 ms 632 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 384 KB Output is correct
2 Correct 46 ms 504 KB Output is correct
3 Correct 274 ms 688 KB Output is correct
4 Correct 271 ms 640 KB Output is correct
5 Correct 267 ms 688 KB Output is correct
6 Correct 197 ms 640 KB Output is correct
7 Correct 243 ms 640 KB Output is correct
8 Correct 246 ms 640 KB Output is correct
9 Correct 261 ms 640 KB Output is correct
10 Correct 182 ms 640 KB Output is correct
11 Correct 184 ms 640 KB Output is correct
12 Correct 175 ms 764 KB Output is correct
13 Correct 184 ms 640 KB Output is correct
14 Correct 173 ms 640 KB Output is correct
15 Correct 193 ms 640 KB Output is correct
16 Correct 166 ms 632 KB Output is correct
17 Correct 168 ms 632 KB Output is correct
18 Correct 182 ms 632 KB Output is correct
19 Correct 3819 ms 1508 KB Output is correct
20 Correct 4978 ms 1656 KB Output is correct
21 Correct 4301 ms 1664 KB Output is correct
22 Correct 4818 ms 1664 KB Output is correct
23 Correct 3088 ms 1536 KB Output is correct
24 Correct 3105 ms 1536 KB Output is correct
25 Correct 3058 ms 1484 KB Output is correct
26 Correct 3135 ms 1480 KB Output is correct
27 Correct 3086 ms 1432 KB Output is correct
28 Correct 3086 ms 1432 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6445 ms 1776 KB Output is correct
2 Execution timed out 9069 ms 2736 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 384 KB Output is correct
2 Correct 46 ms 504 KB Output is correct
3 Correct 274 ms 688 KB Output is correct
4 Correct 271 ms 640 KB Output is correct
5 Correct 267 ms 688 KB Output is correct
6 Correct 197 ms 640 KB Output is correct
7 Correct 243 ms 640 KB Output is correct
8 Correct 246 ms 640 KB Output is correct
9 Correct 261 ms 640 KB Output is correct
10 Correct 182 ms 640 KB Output is correct
11 Correct 184 ms 640 KB Output is correct
12 Correct 175 ms 764 KB Output is correct
13 Correct 184 ms 640 KB Output is correct
14 Correct 173 ms 640 KB Output is correct
15 Correct 193 ms 640 KB Output is correct
16 Correct 166 ms 632 KB Output is correct
17 Correct 168 ms 632 KB Output is correct
18 Correct 182 ms 632 KB Output is correct
19 Correct 3819 ms 1508 KB Output is correct
20 Correct 4978 ms 1656 KB Output is correct
21 Correct 4301 ms 1664 KB Output is correct
22 Correct 4818 ms 1664 KB Output is correct
23 Correct 3088 ms 1536 KB Output is correct
24 Correct 3105 ms 1536 KB Output is correct
25 Correct 3058 ms 1484 KB Output is correct
26 Correct 3135 ms 1480 KB Output is correct
27 Correct 3086 ms 1432 KB Output is correct
28 Correct 3086 ms 1432 KB Output is correct
29 Correct 6445 ms 1776 KB Output is correct
30 Execution timed out 9069 ms 2736 KB Time limit exceeded
31 Halted 0 ms 0 KB -