oj.uz

Submission #559989

# Submission time Handle Problem Language Result Execution time Memory
559989 2022-05-11T02:22:34 Z minhcool Monster Game (JOI21_monster) C++17
25 / 100
 198 ms 592 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];

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int rnd(int l, int r){
	int temp = rng() % (r - l + 1);
	temp = (temp + (r - l + 1)) % (r - l + 1);
	return temp + l;
}

vector<int> er(vector<int> a, int x){
	vector<int> b;
	for(auto it : a) if(it != x) b.pb(it);
	return b;
}

int deg[N];

map<ii, bool> mp;

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++){
		for(int j = i + 1; j < x.size(); j++){
			mp[{x[i], x[j]}] = Query(x[i], x[j]);
			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;
	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;
		}
	}
	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){
	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;
	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(){
	
}

signed main(){
	ios_base::sync_with_stdio(0);
	process();
}
*/

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:42:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |  assert(x.size() == (r - l + 1));
      |         ~~~~~~~~~^~~~~~~~~~~~~~
monster.cpp:48:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |  for(int i = 0; i < x.size(); i++){
      |                 ~~^~~~~~~~~~
monster.cpp:49:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |   for(int j = i + 1; j < x.size(); j++){
      |                      ~~^~~~~~~~~~
monster.cpp:66:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   if(deg[it] >= 2 && deg[it] <= x.size() - 3){
      |                      ~~~~~~~~^~~~~~~~~~~~~~~
monster.cpp:73:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |   if(deg[it] == x.size() - 2){
      |      ~~~~~~~~^~~~~~~~~~~~~~~
monster.cpp: In function 'void solve(std::vector<int>, int, int)':
monster.cpp:123:7: warning: unused variable 'ck1' [-Wunused-variable]
  123 |  bool ck1 = 0, ck2 = 0;
      |       ^~~
monster.cpp:123:16: warning: unused variable 'ck2' [-Wunused-variable]
  123 |  bool ck1 = 0, ck2 = 0;
      |                ^~~
monster.cpp: In function 'void solve_brute(std::vector<int>, int, int)':
monster.cpp:88:22: warning: 'mx1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   88 |   a[mx0] = r; a[mx1] = r - 1;
      |               ~~~~~~~^~~~~~~
monster.cpp:79:22: warning: 'mn1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   79 |   a[mn0] = l; a[mn1] = l + 1;
      |               ~~~~~~~^~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 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 1 ms 208 KB Output is correct
11 Correct 1 ms 208 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 0 ms 208 KB Output is correct
16 Correct 22 ms 328 KB Output is correct
17 Correct 18 ms 328 KB Output is correct
18 Correct 12 ms 328 KB Output is correct
19 Correct 17 ms 208 KB Output is correct
20 Correct 12 ms 336 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 0 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 19 ms 324 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 1 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 23 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 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 1 ms 208 KB Output is correct
11 Correct 1 ms 208 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 0 ms 208 KB Output is correct
16 Correct 22 ms 328 KB Output is correct
17 Correct 18 ms 328 KB Output is correct
18 Correct 12 ms 328 KB Output is correct
19 Correct 17 ms 208 KB Output is correct
20 Correct 12 ms 336 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 0 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 19 ms 324 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 1 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 23 ms 208 KB Output is correct
33 Correct 198 ms 476 KB Output is correct
34 Correct 166 ms 464 KB Output is correct
35 Correct 159 ms 488 KB Output is correct
36 Correct 159 ms 364 KB Output is correct
37 Correct 114 ms 460 KB Output is correct
38 Correct 145 ms 324 KB Output is correct
39 Correct 134 ms 336 KB Output is correct
40 Correct 154 ms 464 KB Output is correct
41 Correct 148 ms 344 KB Output is correct
42 Correct 143 ms 448 KB Output is correct
43 Correct 152 ms 376 KB Output is correct
44 Correct 127 ms 336 KB Output is correct

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Partially correct 161 ms 368 KB Partially correct
2 Partially correct 113 ms 592 KB Partially correct
3 Partially correct 160 ms 480 KB Partially correct
4 Partially correct 151 ms 372 KB Partially correct
5 Partially correct 189 ms 492 KB Partially correct
6 Partially correct 163 ms 356 KB Partially correct
7 Partially correct 150 ms 464 KB Partially correct
8 Partially correct 118 ms 328 KB Partially correct
9 Partially correct 132 ms 456 KB Partially correct
10 Partially correct 115 ms 364 KB Partially correct
11 Partially correct 171 ms 500 KB Partially correct
12 Partially correct 140 ms 500 KB Partially correct
13 Incorrect 191 ms 484 KB Wrong Answer [6]
14 Halted 0 ms 0 KB -