oj.uz

Submission #258620

# Submission time Handle Problem Language Result Execution time Memory
258620 2020-08-06T09:12:58 Z errorgorn Restore Array (RMI19_restore) C++14
38 / 100
 47 ms 888 KB 
//雪花飄飄北風嘯嘯
//天地一片蒼茫

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl;

#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

ll MAX(ll a){return a;}
ll MIN(ll a){return a;}
template<typename... Args>
ll MAX(ll a,Args... args){return max(a,MAX(args...));}
template<typename... Args>
ll MIN(ll a,Args... args){return min(a,MIN(args...));}

#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>

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

struct dat{
	int l,r;
	int val;
	int len=0;
	bool used=false;
};

int n,k;
int ans[5005];
dat arr[10005];

void rage(){
	cout<<"-1"<<endl;
	exit(0);
}

vector<int> proc; //those with len==1

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	memset(ans,-1,sizeof(ans));
	
	cin>>n>>k;
	
	int a,b,c,d;
	int idx=0;
	
	rep(x,0,k){
		cin>>a>>b>>c>>d;
		
		if (c==b-a+1 && d==0){
			rep(x,a,b+1){
				if (ans[x]==1) rage();
				ans[x]=0;
			}
		}
		else if (c==1 && d==1){
			rep(x,a,b+1){
				if (ans[x]==0) rage();
				ans[x]=1;
			}
		}
		else if (d==0){ //exists 0
			arr[idx].l=a;
			arr[idx].r=b;
			arr[idx].val=0;
			idx++;
		}
		else{
			arr[idx].l=a;
			arr[idx].r=b;
			arr[idx].val=1;
			idx++;
		}
	}
	
	rep(x,0,idx){
		rep(y,arr[x].l,arr[x].r+1){
			if (ans[y]==-1) arr[x].len++;
			else if (ans[y]==arr[x].val) arr[x].used=true;
		}
		
		if (arr[x].len<=1) proc.push_back(x);
	}
	
	while (!proc.empty()){
		int node=proc.back();
		proc.pop_back();
		
		if (arr[node].used) continue;
		if (arr[node].len==0) rage();
		
		int pos;
		rep(y,arr[node].l,arr[node].r+1){
			if (ans[y]==-1) pos=y;
		}
		
		ans[pos]=arr[node].val;
		rep(x,0,idx) if (!arr[x].used){
			if (arr[x].l<=pos && pos<=arr[x].r){
				if (arr[node].val==arr[x].val) arr[x].used=true;
				arr[x].len--;
				if (arr[x].len==1) proc.push_back(x);
			}
		}
	}
	
	//rep(x,0,n) cout<<ans[x]<<" "; cout<<endl;
	
	int curr=0;
	rep(x,0,n){
		if (ans[x]==-1){
			ans[x]=curr;
			curr^=1;
		}
	}
	
	rep(x,0,n) cout<<ans[x]<<" "; cout<<endl;
}

Compilation message

restore.cpp: In function 'int main()':
restore.cpp:19:26: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 #define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
                          ^
restore.cpp:134:2: note: in expansion of macro 'rep'
  rep(x,0,n) cout<<ans[x]<<" "; cout<<endl;
  ^~~
restore.cpp:134:32: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  rep(x,0,n) cout<<ans[x]<<" "; cout<<endl;
                                ^~~~
restore.cpp:114:11: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   ans[pos]=arr[node].val;
   ~~~~~~~~^~~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 0 ms 512 KB Output is correct
7 Incorrect 1 ms 512 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 640 KB Output is correct
2 Correct 46 ms 640 KB Output is correct
3 Correct 44 ms 640 KB Output is correct
4 Correct 44 ms 760 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 9 ms 640 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 640 KB Output is correct
2 Correct 46 ms 640 KB Output is correct
3 Correct 44 ms 640 KB Output is correct
4 Correct 44 ms 760 KB Output is correct
5 Correct 1 ms 640 KB Output is correct
6 Correct 9 ms 640 KB Output is correct
7 Correct 47 ms 760 KB Output is correct
8 Correct 47 ms 760 KB Output is correct
9 Correct 46 ms 760 KB Output is correct
10 Correct 43 ms 760 KB Output is correct
11 Correct 0 ms 512 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 43 ms 760 KB Output is correct
14 Correct 19 ms 888 KB Output is correct
15 Correct 20 ms 768 KB Output is correct
16 Correct 27 ms 760 KB Output is correct

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 0 ms 512 KB Output is correct
7 Incorrect 1 ms 512 KB Output isn't correct
8 Halted 0 ms 0 KB -