oj.uz

Submission #631734

# Submission time Handle Problem Language Result Execution time Memory
631734 2022-08-18T15:21:08 Z minhcool Monster Game (JOI21_monster) C++17
10 / 100
 28 ms 464 KB 
#include "monster.h"
#include<bits/stdc++.h>
using namespace std;
 
//#define int long long
#define fi first
#define se second
#define pb push_back
//#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 1e5 + 5;
 
const int oo = 1e18 + 7, mod = 1e9 + 7;
 
int n, a[N], b[N];
 
int cnt = 0;
 
vector<int> er(vector<int> a, int x){
	vector<int> b;
	for(auto it : a) if(it != x) b.pb(it);
	return b;
}
 
/*
int Query(int x, int y){
	cnt++;
	//cout << x << " " << y << " " << b[x] << b[y] << "\n";
	if(b[x] < (b[y] - 1)) return 0;
	if(b[x] == (b[y] + 1)) return 0;
	return 1;
}
 */
map<ii, bool> mp;
 
int Querry(int x, int y){
	if(mp.find({x, y}) != mp.end()) return mp[{x, y}];
	int temp = Query(x, y);
	mp[{x, y}] = temp;
    return temp;
}
 
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937 rng(1);
 
int rnd(int l, int r){
	int temp = rng() % (r - l + 1);
	temp = (temp + (r - l + 1)) % (r - l + 1);
	return temp + l;
}
 
int deg[N];
 
void solve_brute(vector<int> x, int l, int r){
	assert(x.size() == (r - l + 1));
	if(x.size() == 1){
		a[x[0]] = l;
		return;
	}
	assert(x.size() != 3);
	for(int i = 0; i < x.size(); i++) deg[x[i]] = 0;
	for(int i = 0; i < x.size(); i++){
		for(int j = i + 1; j < x.size(); j++){
			Querry(x[i], x[j]);
			//cout << i << " " << j << " " << b[x[i]] << " " << b[x[j]] << " " << mp[{x[i], x[j]}] << "\n";
			if(mp[{x[i], x[j]}]) deg[x[i]]++;
			else deg[x[j]]++;
		}
	}
	if(x.size() == 2){
		if(!mp[{x[0], x[1]}]){
			a[x[0]] = r, a[x[1]] = l;
		}
		else{
			a[x[1]] = r, a[x[0]] = l;
		}
		return;
	}
	int mn0 = -1, mn1, mx0 = -1, mx1;
	//cout << x.size() << "\n";
	for(auto it : x){
		if(deg[it] >= 2 && deg[it] <= x.size() - 3){
			a[it] = l + deg[it];
		}
		if(deg[it] == 1){
			if(mn0 == -1) mn0 = it;
			else mn1 = it;
		}
		if(deg[it] == x.size() - 2){
			if(mx0 == -1) mx0 = it;
			else mx1 = it;
		}
		//cout << deg[it] << " ";
	}
	//cout << "\n";
	//for(auto it : x) cout << b[it] << " ";
	//cout << "\n";
	//cout << Querry(b[2], b[4]) << "\n";
	if(min({mn0, mn1, mx0, mx1}) < 0) exit(0);
	//cout << mn0 << " " << mn1 << "\n";
	if(mp[{mn0, mn1}]){
		a[mn0] = l; a[mn1] = l + 1;
	}
	else{
		a[mn0] = l + 1; a[mn1] = l;
	}
	if(mp[{mx0, mx1}]){
		a[mx0] = r - 1; a[mx1] = r;
	}
	else{
		a[mx0] = r; a[mx1] = r - 1;
	}
}
 
 
void solve(vector<int> x, int l, int r){
	//for(auto it : x) assert(b[it] >= l && b[it] <= r);
	shuffle(x.begin(), x.end(), default_random_engine(7405));
	if(x.size() <= 10){
		solve_brute(x, l, r);
		return;
	}
	int temp;
	vector<int> vc1, vc2;
	int iter = 0;
	temp = x[rnd(0, x.size() - 1)];
	int cnt1 = 0, cnt2 = 0;
	vector<int> sm, la;
	for(int i = 0; (sm.size() + la.size()) < 10; i++){
		if(temp == x[i]) continue;
		if(Querry(temp, x[i])) sm.pb(x[i]);
		else la.pb(x[i]);
	}
	if(sm.size() < 2){
		for(auto it : la){
			int cnt = 0;
			for(auto it2 : la) if(it != it2 && Querry(it, it2)) cnt++;
			if(cnt >= 2 && cnt <= 6){
				temp = it;
				break;
			}   
		}
	}
	if(la.size() < 2){
		for(auto it : sm){
			int cnt = 0;
			for(auto it2 : sm) if(it != it2 && Querry(it, it2)) cnt++;
			if(cnt >= 3 && cnt <= 7){
				temp = it;
				break;
			}   
		}
	}
	//cout << l << " " << r << " " << temp << "\n";
		//if(cnt1 < 2 || cnt2 < 2) continue;
		//break;
	//cout << temp << "\n";
	for(auto it : x){
		if(it == temp) continue;
		if(Query(temp, it)) vc1.pb(it);
		else vc2.pb(it);
	}
	//cout << vc1.size() << " " << vc2.size() << "\n";
	//cout << temp << " " << l + vc1.size() << "\n";
	a[temp] = l + vc1.size();
	int w1 = vc1[0], w2 = vc2[0];
	for(auto it : vc1){
		if(it == w1) continue;
		if(Querry(it, w1)) w1 = it;
	}
	for(auto it : vc2){
		if(it == w2) continue;
		if(Querry(w2, it)) w2 = it;
	}
	bool ck1 = 0, ck2 = 0;
	a[w1] = l + vc1.size() + 1;
	a[w2] = l + vc1.size() - 1;
	vc1 = er(vc1, w1);
	vc2 = er(vc2, w2);
	//vc1 = er(vc1, w1);
	//vc2 = er(vc2, w2);
	if(vc1.size() == 3) vc1.pb(w2);
	if(vc2.size() == 3) vc2.pb(w1);
	solve(vc1, l, l + vc1.size() - 1);
	solve(vc2, r - vc2.size() + 1, r);
}
 
/*
void solve(vector<int> x, int l, int r){
	if(x.size() <= 4){
		solve_brute(x, l, r);
		return;
	}
	int temp;
	vector<int> vc1, vc2;
	while(1){
		temp = x[rnd(0, x.size() - 1)];
		vc1.clear(), vc2.clear();
		for(auto it : x){
			if(it == temp) continue;
			if(!Query(it, temp)) vc1.pb(it);
			else vc2.pb(it);
		}
		assert(vc1.size() && vc2.size());
		if(vc1.size() == 1 || vc2.size() == 1) continue;
		if(vc1.size() == 4 || vc2.size() == 4) continue;
		break;
	}
	//cout << temp << " " << l + vc1.size() << "\n";
	a[temp] = l + vc1.size();
	int w1 = vc1[0], w2 = vc2[0];
	for(auto it : vc1){
		if(it == w1) continue;
		if(Query(it, w1)) w1 = it;
	}
	for(auto it : vc2){
		if(it == w2) continue;
		if(Query(w2, it)) w2 = it;
	}
	bool ck1 = 0, ck2 = 0;
	a[w1] = l + vc1.size() + 1;
	a[w2] = l + vc1.size() - 1;
	vc1 = er(vc1, w1);
	vc2 = er(vc2, w2);
	solve(vc1, l, l + vc1.size() - 1);
	solve(vc2, r - vc2.size() + 1, r);
}*/
 
vector<int> Solve(int _n){
	n = _n;
    assert(n <= 500);
	vector<int> temp;
	for(int i = 0; i < n; i++) temp.pb(i);
	solve(temp, 0, n - 1);
	//solve_brute(temp, 0, n - 1);
	vector<int> temp2;
	for(int i = 0; i < n; i++) temp2.pb(a[i]);
	return temp2;
}
/*
void process(int t){
	int n = 1000;
	for(int i = 0; i < n; i++) b[i] = i;
	shuffle(b, b + n, default_random_engine(rnd(1, 10000)));
	cnt = 0;
	//cout << "OK\n";
	Solve(n);
	if(cnt >= 18000) cout << t << " " << cnt << "\n";
	//for(int i = 0; i < n; i++) cout << a[i] << " " << b[i] << "\n";
}
 
signed main(){
	ios_base::sync_with_stdio(0);
	int t;
	cin >> t;
	for(int i = 1; i <= t; i++){
		mp.clear();
		//cout << i << "\n";
		process(i);
	}
	//cout << fixed << setprecision(10) << (double)cnt / (double)t << "\n";
}*/

Compilation message

monster.cpp:19:21: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   19 | const int oo = 1e18 + 7, mod = 1e9 + 7;
      |                ~~~~~^~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from monster.cpp:2:
monster.cpp: In function 'void solve_brute(std::vector<int>, int, int)':
monster.cpp:61:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |  assert(x.size() == (r - l + 1));
      |         ~~~~~~~~~^~~~~~~~~~~~~~
monster.cpp:67:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |  for(int i = 0; i < x.size(); i++) deg[x[i]] = 0;
      |                 ~~^~~~~~~~~~
monster.cpp:68:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |  for(int i = 0; i < x.size(); i++){
      |                 ~~^~~~~~~~~~
monster.cpp:69:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 |   for(int j = i + 1; j < x.size(); j++){
      |                      ~~^~~~~~~~~~
monster.cpp:88:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |   if(deg[it] >= 2 && deg[it] <= x.size() - 3){
      |                      ~~~~~~~~^~~~~~~~~~~~~~~
monster.cpp:95:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |   if(deg[it] == x.size() - 2){
      |      ~~~~~~~~^~~~~~~~~~~~~~~
monster.cpp: In function 'void solve(std::vector<int>, int, int)':
monster.cpp:131:6: warning: unused variable 'iter' [-Wunused-variable]
  131 |  int iter = 0;
      |      ^~~~
monster.cpp:133:6: warning: unused variable 'cnt1' [-Wunused-variable]
  133 |  int cnt1 = 0, cnt2 = 0;
      |      ^~~~
monster.cpp:133:16: warning: unused variable 'cnt2' [-Wunused-variable]
  133 |  int cnt1 = 0, cnt2 = 0;
      |                ^~~~
monster.cpp:181:7: warning: unused variable 'ck1' [-Wunused-variable]
  181 |  bool ck1 = 0, ck2 = 0;
      |       ^~~
monster.cpp:181:16: warning: unused variable 'ck2' [-Wunused-variable]
  181 |  bool ck1 = 0, ck2 = 0;
      |                ^~~
monster.cpp: In function 'void solve_brute(std::vector<int>, int, int)':
monster.cpp:108:22: warning: 'mn1' may be used uninitialized in this function [-Wmaybe-uninitialized]
  108 |   a[mn0] = l; a[mn1] = l + 1;
      |               ~~~~~~~^~~~~~~
monster.cpp:85:31: warning: 'mx1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   85 |  int mn0 = -1, mn1, mx0 = -1, mx1;
      |                               ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 28 ms 348 KB Output is correct
17 Correct 17 ms 372 KB Output is correct
18 Correct 26 ms 396 KB Output is correct
19 Correct 23 ms 352 KB Output is correct
20 Correct 20 ms 336 KB Output is correct
21 Correct 0 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 444 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 18 ms 360 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 208 KB Output is correct
15 Correct 1 ms 208 KB Output is correct
16 Correct 28 ms 348 KB Output is correct
17 Correct 17 ms 372 KB Output is correct
18 Correct 26 ms 396 KB Output is correct
19 Correct 23 ms 352 KB Output is correct
20 Correct 20 ms 336 KB Output is correct
21 Correct 0 ms 208 KB Output is correct
22 Correct 0 ms 208 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 208 KB Output is correct
26 Correct 11 ms 444 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 208 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 18 ms 360 KB Output is correct
33 Runtime error 1 ms 464 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 464 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -