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Submission #259481

# Submission time Handle Problem Language Result Execution time Memory
259481 2020-08-07T22:07:13 Z Goolakh Street Lamps (APIO19_street_lamps) C++17
100 / 100
 3064 ms 244044 KB 
// FUCKED UP FUCKED UP FUCKED UP FUCKED UP FUCKED UP _  Who? _
// FUCKED UP FUCKED UP FUCKED UP FUCKED UP FUCKED UP _  You  _
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O2,no-stack-protector,unroll-loops,fast-math")

#define F first
#define S second
#define pb push_back
#define SZ(x) (ll)(x.size())
#define all(x) x.begin(),x.end()
#define MP make_pair

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;

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

const ll maxn=3e5+10, maxm=1e6+10, lg=21, mod=998244353, inf=1e18;

#define git(x) (x&-x)
#define lc (v<<1)
#define rc (lc^1)
#define md ((s+t)>>1)

struct node{
	vector<ll> vec,bit; bool ok=0;
	void add(ll i,ll x){for(i++;i<SZ(bit);i+=git(i))bit[i]+=x;}
	ll get(ll i){ll ret=0;for(i++;i;i-=git(i))ret+=bit[i];return ret;}
}seg[maxn<<2];
ll n,q,l[maxn],r[maxn];
string S;
vector<ll> qq[maxn];

void rev(ll x,ll s=1,ll t=n+1,ll v=1){
	if(t-s==1){
		seg[v].ok^=1;
		return;
	}
	(x<md ? rev(x,s,md,lc):rev(x,md,t,rc));
	seg[v].ok=seg[lc].ok&seg[rc].ok;
}
ll getc(ll x,ll s=1,ll t=n+1,ll v=1){
	if(s>=x || seg[v].ok) return 0;
	if(t-s==1) return s;
	ll xx=getc(x,md,t,rc);
	if(xx!=0) return xx;
	return getc(x,s,md,lc);
}
ll getr(ll x,ll s=1,ll t=n+1,ll v=1){
	if(t<=x+1 || seg[v].ok) return n+1;
	if(t-s==1) return s;
	ll xx=getr(x,s,md,lc);
	if(xx!=n+1) return xx;
	return getr(x,md,t,rc);
}
bool geto(ll l,ll r,ll s=1,ll t=n+1,ll v=1){
	if(l>=t || r<=s) return 1;
	if(l<=s && r>=t) return seg[v].ok;
	return geto(l,r,s,md,lc) && geto(l,r,md,t,rc);
}
void bild(ll s=1,ll t=n+1,ll v=1){
	if(t-s==1){
		for(auto r:qq[s]) seg[v].vec.pb(r);
		sort(all(seg[v].vec)), seg[v].vec.resize(unique(all(seg[v].vec))-seg[v].vec.begin());
		seg[v].bit.resize(SZ(seg[v].vec)+10);
		return;
	}
	bild(s,md,lc), bild(md,t,rc);
	seg[v].vec.resize(SZ(seg[lc].vec)+SZ(seg[rc].vec));
	merge(all(seg[lc].vec),all(seg[rc].vec),seg[v].vec.begin());
	seg[v].bit.resize(SZ(seg[v].vec)+10);
}
void add(ll l,ll r,ll lx,ll rx,ll x,ll s=1,ll t=n+1,ll v=1){
	if(l>=t || r<=s) return;
	if(l<=s && r>=t){
		ll L=upper_bound(all(seg[v].vec),lx)-seg[v].vec.begin();
		ll R=upper_bound(all(seg[v].vec),rx)-seg[v].vec.begin();
		seg[v].add(L,+x);
		seg[v].add(R,-x);
		return;
	}
	add(l,r,lx,rx,x,s,md,lc);
	add(l,r,lx,rx,x,md,t,rc);
}
ll get(ll l,ll r,ll s=1,ll t=n+1,ll v=1){
	ll ret=seg[v].get(lower_bound(all(seg[v].vec),r)-seg[v].vec.begin());
	if(t-s==1) return ret;
	ret+=(l<md ? get(l,r,s,md,lc):get(l,r,md,t,rc));
	return ret;
}

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	
	cin>>n>>q>>S; S='#'+S;
	for(int i=0;i<q;i++){
		string s; cin>>s>>l[i];
		if(s[0]=='q') cin>>r[i], qq[l[i]].pb(r[i]);
	}
	bild();
	for(int i=1;i<=n;i++)if(S[i]=='1') add(getc(i)+1,i+1,i,getr(i),q), rev(i);
	for(int i=0;i<q;i++){
		if(r[i]){
			ll x=get(l[i],r[i]);
			if(geto(l[i],r[i])) x-=(q-i-1);
			cout<<x<<'\n';
		}
		else add(getc(l[i])+1,l[i]+1,l[i],getr(l[i]),(geto(l[i],l[i]+1) ? -1:+1)*(q-i-1)), rev(l[i]);
	}
	
	return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 73080 KB Output is correct
2 Correct 42 ms 73080 KB Output is correct
3 Correct 42 ms 73116 KB Output is correct
4 Correct 42 ms 73208 KB Output is correct
5 Correct 43 ms 73208 KB Output is correct
6 Correct 42 ms 73208 KB Output is correct
7 Correct 42 ms 73208 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 219 ms 83192 KB Output is correct
2 Correct 281 ms 85496 KB Output is correct
3 Correct 441 ms 88340 KB Output is correct
4 Correct 1721 ms 184676 KB Output is correct
5 Correct 1718 ms 191380 KB Output is correct
6 Correct 1291 ms 176228 KB Output is correct
7 Correct 2400 ms 211376 KB Output is correct
8 Correct 2487 ms 212684 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 73340 KB Output is correct
2 Correct 44 ms 73464 KB Output is correct
3 Correct 47 ms 73720 KB Output is correct
4 Correct 45 ms 73592 KB Output is correct
5 Correct 736 ms 137188 KB Output is correct
6 Correct 1240 ms 168804 KB Output is correct
7 Correct 1824 ms 198756 KB Output is correct
8 Correct 3064 ms 238868 KB Output is correct
9 Correct 272 ms 84216 KB Output is correct
10 Correct 277 ms 84856 KB Output is correct
11 Correct 303 ms 85496 KB Output is correct
12 Correct 2473 ms 237676 KB Output is correct
13 Correct 2976 ms 238924 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 73592 KB Output is correct
2 Correct 52 ms 73464 KB Output is correct
3 Correct 47 ms 73464 KB Output is correct
4 Correct 45 ms 73336 KB Output is correct
5 Correct 2555 ms 241888 KB Output is correct
6 Correct 1932 ms 212264 KB Output is correct
7 Correct 1387 ms 181476 KB Output is correct
8 Correct 837 ms 138164 KB Output is correct
9 Correct 428 ms 93292 KB Output is correct
10 Correct 232 ms 79220 KB Output is correct
11 Correct 443 ms 93324 KB Output is correct
12 Correct 251 ms 79224 KB Output is correct
13 Correct 462 ms 93176 KB Output is correct
14 Correct 223 ms 79224 KB Output is correct
15 Correct 2457 ms 242848 KB Output is correct
16 Correct 2968 ms 244044 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 73080 KB Output is correct
2 Correct 42 ms 73080 KB Output is correct
3 Correct 42 ms 73116 KB Output is correct
4 Correct 42 ms 73208 KB Output is correct
5 Correct 43 ms 73208 KB Output is correct
6 Correct 42 ms 73208 KB Output is correct
7 Correct 42 ms 73208 KB Output is correct
8 Correct 219 ms 83192 KB Output is correct
9 Correct 281 ms 85496 KB Output is correct
10 Correct 441 ms 88340 KB Output is correct
11 Correct 1721 ms 184676 KB Output is correct
12 Correct 1718 ms 191380 KB Output is correct
13 Correct 1291 ms 176228 KB Output is correct
14 Correct 2400 ms 211376 KB Output is correct
15 Correct 2487 ms 212684 KB Output is correct
16 Correct 44 ms 73340 KB Output is correct
17 Correct 44 ms 73464 KB Output is correct
18 Correct 47 ms 73720 KB Output is correct
19 Correct 45 ms 73592 KB Output is correct
20 Correct 736 ms 137188 KB Output is correct
21 Correct 1240 ms 168804 KB Output is correct
22 Correct 1824 ms 198756 KB Output is correct
23 Correct 3064 ms 238868 KB Output is correct
24 Correct 272 ms 84216 KB Output is correct
25 Correct 277 ms 84856 KB Output is correct
26 Correct 303 ms 85496 KB Output is correct
27 Correct 2473 ms 237676 KB Output is correct
28 Correct 2976 ms 238924 KB Output is correct
29 Correct 57 ms 73592 KB Output is correct
30 Correct 52 ms 73464 KB Output is correct
31 Correct 47 ms 73464 KB Output is correct
32 Correct 45 ms 73336 KB Output is correct
33 Correct 2555 ms 241888 KB Output is correct
34 Correct 1932 ms 212264 KB Output is correct
35 Correct 1387 ms 181476 KB Output is correct
36 Correct 837 ms 138164 KB Output is correct
37 Correct 428 ms 93292 KB Output is correct
38 Correct 232 ms 79220 KB Output is correct
39 Correct 443 ms 93324 KB Output is correct
40 Correct 251 ms 79224 KB Output is correct
41 Correct 462 ms 93176 KB Output is correct
42 Correct 223 ms 79224 KB Output is correct
43 Correct 2457 ms 242848 KB Output is correct
44 Correct 2968 ms 244044 KB Output is correct
45 Correct 132 ms 80460 KB Output is correct
46 Correct 239 ms 81272 KB Output is correct
47 Correct 943 ms 130036 KB Output is correct
48 Correct 1584 ms 193048 KB Output is correct
49 Correct 322 ms 88108 KB Output is correct
50 Correct 309 ms 87928 KB Output is correct
51 Correct 332 ms 89080 KB Output is correct
52 Correct 531 ms 107896 KB Output is correct
53 Correct 525 ms 108024 KB Output is correct
54 Correct 526 ms 108152 KB Output is correct