oj.uz

Submission #352404

# Submission time Handle Problem Language Result Execution time Memory
352404 2021-01-20T17:48:00 Z ryansee Comparing Plants (IOI20_plants) C++14
14 / 100
 4000 ms 7020 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 (200006)

int n, start;
ll A[MAXN], hmm[MAXN];
bitset<MAXN> gone;
struct u {
	int p[MAXN];
	u() {
		FOR(i,0,MAXN-1) p[i]=i;
	}
	int find(int x) { return p[x] == x ? x : p[x] = find(p[x]); }
	void merge(int x,int y) { p[find(x)]=find(y); }
	bool same(int a,int b) { return find(a)==find(b); }
} u;

void init(int k, std::vector<int> r) {
	n=r.size(), mmst(hmm, -1);
	
	while(1) {
		start = -1;
		FOR(i,0,n-1) if(!gone[i] && r[i] == 0) {
			DEC(jj,i-1,i-k+1) {
				int j = (jj + n) % n;
				if(!gone[j] && r[j] == 0) goto no;
			}
			start = i;
			break;
			no:;
		}
		if(start == -1) break;
		
		FOR(i,start+1,start+k-1) if(!gone[i%n]) {
			// assert(A[start]+1 > A[i%n]);
			A[i%n]=max(A[i%n], A[start]+1), hmm[i%n]=start;
			u.merge(i%n, start);
		}
		
		DEC(i,start-1,start-k+1) if(!gone[(i+n)%n]) {
			// assert(A[start]+1 >= A[(i+n)%n]);
			A[(i+n)%n] = max(A[(i+n)%n], A[start]+1), -- r[(i+n)%n];
			u.merge((i+n)%n, start);
		}
		gone[start] = 1;
	}
	FOR(i,0,n-1) assert(r[i]==0);
	// FOR(i,0,n-1) cerr<<A[i]<<' '; cerr<<'\n';
}

int compare_plants(int x, int y) {
	if(!u.same(x, y) || A[x] == A[y]) return 0;
	return A[x] < A[y] ? 1 : -1;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Incorrect 2 ms 2668 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 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 31 ms 2796 KB Output is correct
7 Correct 807 ms 5740 KB Output is correct
8 Correct 4 ms 2796 KB Output is correct
9 Correct 31 ms 2924 KB Output is correct
10 Correct 773 ms 5740 KB Output is correct
11 Correct 409 ms 5484 KB Output is correct
12 Correct 478 ms 5740 KB Output is correct
13 Correct 973 ms 5680 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 2 ms 2668 KB Output is correct
5 Correct 2 ms 2668 KB Output is correct
6 Correct 31 ms 2796 KB Output is correct
7 Correct 807 ms 5740 KB Output is correct
8 Correct 4 ms 2796 KB Output is correct
9 Correct 31 ms 2924 KB Output is correct
10 Correct 773 ms 5740 KB Output is correct
11 Correct 409 ms 5484 KB Output is correct
12 Correct 478 ms 5740 KB Output is correct
13 Correct 973 ms 5680 KB Output is correct
14 Execution timed out 4091 ms 5356 KB Time limit exceeded
15 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 68 ms 5576 KB Output is correct
4 Execution timed out 4042 ms 7020 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Incorrect 2 ms 2668 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Incorrect 2 ms 2668 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2668 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Incorrect 2 ms 2668 KB Output isn't correct
5 Halted 0 ms 0 KB -