oj.uz

Submission #354236

# Submission time Handle Problem Language Result Execution time Memory
354236 2021-01-21T15:23:00 Z ryansee Comparing Plants (IOI20_plants) C++14
14 / 100
 3355 ms 2097156 KB 
#include "plants.h"
 
#include "bits/stdc++.h"
using namespace std;
 
#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define f first
#define s second
#define cbr cerr<<"hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x,y) (lower_bound(all(x),y)-x.begin())
#define ubd(x,y) (upper_bound(all(x),y)-x.begin())
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return rng() % (y+1-x) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }
 
using ll=long long; 
using ld=long double;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
using pi=pair<ll,ll>; using spi=pair<ll,pi>; using dpi=pair<pi,pi>; 
 
long long LLINF = 1e18;
int INF = 1e9+1e6;
#define MAXN (5002)
 
int n, start;
ll A[MAXN];
bitset<MAXN> gone, done;
inline ll cy(ll x) {
	x %= n, x += n, x %= n; return x;
}
vector<int> v[MAXN];
bitset<MAXN> reach[MAXN];
void init(int k, std::vector<int> r) {
	n=r.size();
	function<void(int,int,bool)> zero=[&](int x,int op,bool can){
		FOR(j,x+1,x+k-1) if(!gone[cy(j)]) {
			if((can || done[cy(j)]) && r[cy(j)]==0) zero(cy(j), -1, 1);
			r[cy(j)] += op;
			if((can || done[cy(j)]) && r[cy(j)]==0) zero(cy(j), 1, 1);
		}
	};
	FOR(i,0,n-1) if(r[i]==0) done[i]=1, zero(i, 1, 0);
	while(1) {
		start = -1;
		FOR(i,0,n-1) if(!gone[i] && r[i] == 0) start = i;
		if(start == -1) break;
		gone[start]=1, zero(start, -1, 1);
		FOR(i,start+1,start+k-1) if(!gone[cy(i)]) {
			A[cy(i)]=max(A[cy(i)], A[start]+1);
		}
		DEC(i,start-1,start-k+1) if(!gone[cy(i)]) {
			A[cy(i)] = max(A[cy(i)], A[start]+1);
			-- r[cy(i)];
			if(r[cy(i)]==0) zero(cy(i), 1, 1);
		}
	}
	FOR(i,0,n-1) assert(r[i]==0);
	FOR(i,0,n-1) FOR(jj,i+1,i+k-1) { int j=cy(jj);
		assert(A[i] ^ A[j]);
		if(A[i] < A[j]) v[i].eb(j);
		else v[j].eb(i);
	}
	// function<void(ll,ll)>dfs=[&](ll x,ll o){
		// if(reach[x][o]) return;
		// reach[x][o]=1;
		// for(auto i:v[x]) dfs(i, o);
	// };
	// FOR(i,0,n-1) dfs(i, i);
	FOR(i,0,n-1) reach[i].set();
}
int compare_plants(int x, int y) {
	if(reach[x][y] || reach[y][x]) return A[x] < A[y] ? 1 : -1;
	else return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 82 ms 6380 KB Output is correct
7 Correct 2118 ms 111596 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 80 ms 6252 KB Output is correct
10 Correct 2060 ms 111680 KB Output is correct
11 Correct 1102 ms 71916 KB Output is correct
12 Correct 1057 ms 72300 KB Output is correct
13 Correct 2389 ms 137464 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 82 ms 6380 KB Output is correct
7 Correct 2118 ms 111596 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 80 ms 6252 KB Output is correct
10 Correct 2060 ms 111680 KB Output is correct
11 Correct 1102 ms 71916 KB Output is correct
12 Correct 1057 ms 72300 KB Output is correct
13 Correct 2389 ms 137464 KB Output is correct
14 Runtime error 3355 ms 2097156 KB Execution killed with signal 9
15 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Runtime error 1 ms 748 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Runtime error 2 ms 748 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Incorrect 1 ms 492 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Incorrect 1 ms 492 KB Output isn't correct
5 Halted 0 ms 0 KB -