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Submission #349893

# Submission time Handle Problem Language Result Execution time Memory
349893 2021-01-18T15:58:50 Z YJU Fire (JOI20_ho_t5) C++14
7 / 100
 1000 ms 60120 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=(1LL<<19);
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

struct Segment_Tree{
	ll sum[4*N],tag[4*N];
	void push(int id,int l,int r){
		if(tag[id]){
			ll mid=(l+r)>>1;
			sum[id*2]+=(mid-l)*tag[id];
			sum[id*2+1]+=(r-mid)*tag[id];
			tag[id*2]+=tag[id];
			tag[id*2+1]+=tag[id];
			tag[id]=0;
		}
	}
	void add(int id,int l,int r,int ql,int qr,ll val){
		if(l>=qr||r<=ql)return ;
		if(l>=ql&&r<=qr){tag[id]+=val;sum[id]+=val*(r-l);return;}
		push(id,l,r);
		ll mid=(l+r)>>1;
		add(id*2,l,mid,ql,qr,val);
		add(id*2+1,mid,r,ql,qr,val);
		sum[id]=sum[id*2]+sum[id*2+1];
	}
	ll ask(int id,int l,int r,int ql,int qr){
		if(l>=qr||r<=ql)return 0;
		if(l>=ql&&r<=qr)return sum[id];
		push(id,l,r);
		ll mid=(l+r)>>1;
		return ask(id*2,l,mid,ql,qr)+ask(id*2+1,mid,r,ql,qr);
	}
	
	
}seg1,seg2;

int n,q,a[N],sz=0,stk[N],L[N],R[N];
ll ans[N];
vector<pair<int,pair<int,int> > > query[N];
vector<pair<pair<int,int>,int> > work[N];

ll Q(int t,int r){
	return seg1.ask(1,0,N,1,r-t+1+N/2)+seg2.ask(1,0,N,1,r+1+N/2);
}

void update(int ql,int qr,ll val){
	seg1.add(1,0,N,ql+N/2,N,val);
	seg2.add(1,0,N,qr+1+N/2,N,-val);
}

void build(int ql,int qr,ll val){
	if(ql>qr)return ;
	work[0].pb(mp(mp(ql,qr),val));
	work[qr-ql+1].pb(mp(mp(ql,qr),-val));
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n>>q;
	a[0]=INF;
	REP1(i,n){
		cin>>a[i];
		while(sz&&a[stk[sz]]<=a[i]){
			L[i]=stk[sz];
			R[stk[sz]]=i;
			--sz;
		}
		L[i]=(a[L[i]]==a[i]?L[i]:(sz==0?-n-1:stk[sz]));
		R[i]=n+1;
		stk[++sz]=i;
	}

	REP1(i,q){
		ll t,x,y;
		cin>>t>>x>>y;
		query[t].pb(mp(i,mp(x,y)));
	}
	
	REP1(i,n){
		build(L[i]+1,i-1,-a[i]);
		build(i+1,R[i]-1,-a[i]);
		build(L[i]+1,R[i]-1,a[i]);
	}
	
	REP(i,n+1){
		//cout<<i<<"\n";
		for(auto k:work[i]){
			//cout<<k.X.X<<" "<<k.X.Y<<" "<<k.Y<<"\n";
			update(k.X.X,k.X.Y,k.Y);
		}
		for(auto k:query[i]){
			ans[k.X]=Q(i,k.Y.Y)-Q(i,k.Y.X-1);
		}
	}
	REP1(i,q)cout<<ans[i]<<"\n";
	return 0;
}

Compilation message

ho_t5.cpp: In function 'int main()':
ho_t5.cpp:78:7: warning: overflow in conversion from 'long long int' to 'int' changes value from '1152921504606846976' to '0' [-Woverflow]
   78 |  a[0]=INF;
      |       ^~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 25196 KB Output is correct
2 Correct 18 ms 25324 KB Output is correct
3 Correct 18 ms 25324 KB Output is correct
4 Correct 18 ms 25324 KB Output is correct
5 Correct 18 ms 25324 KB Output is correct
6 Correct 19 ms 25324 KB Output is correct
7 Correct 18 ms 25324 KB Output is correct
8 Correct 19 ms 25324 KB Output is correct
9 Correct 18 ms 25324 KB Output is correct
10 Correct 18 ms 25324 KB Output is correct
11 Correct 18 ms 25324 KB Output is correct
12 Correct 18 ms 25324 KB Output is correct
13 Correct 18 ms 25324 KB Output is correct
14 Correct 18 ms 25324 KB Output is correct
15 Correct 18 ms 25340 KB Output is correct
16 Correct 18 ms 25324 KB Output is correct
17 Correct 19 ms 25324 KB Output is correct
18 Correct 18 ms 25324 KB Output is correct
19 Correct 18 ms 25324 KB Output is correct
20 Correct 18 ms 25324 KB Output is correct
21 Correct 18 ms 25324 KB Output is correct
22 Correct 18 ms 25324 KB Output is correct
23 Correct 18 ms 25324 KB Output is correct
24 Correct 18 ms 25324 KB Output is correct
25 Correct 18 ms 25324 KB Output is correct
26 Correct 18 ms 25324 KB Output is correct
27 Correct 18 ms 25324 KB Output is correct
28 Correct 18 ms 25324 KB Output is correct
29 Correct 18 ms 25324 KB Output is correct
30 Correct 18 ms 25324 KB Output is correct
31 Correct 19 ms 25324 KB Output is correct
32 Correct 18 ms 25324 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 25196 KB Output is correct
2 Correct 920 ms 56664 KB Output is correct
3 Correct 883 ms 56408 KB Output is correct
4 Correct 938 ms 57304 KB Output is correct
5 Correct 932 ms 58836 KB Output is correct
6 Correct 931 ms 57176 KB Output is correct
7 Correct 958 ms 56944 KB Output is correct
8 Correct 949 ms 60120 KB Output is correct
9 Correct 943 ms 58496 KB Output is correct
10 Correct 906 ms 56280 KB Output is correct
11 Correct 927 ms 58320 KB Output is correct
12 Correct 893 ms 56940 KB Output is correct
13 Correct 943 ms 58840 KB Output is correct
14 Correct 936 ms 58968 KB Output is correct
15 Correct 922 ms 59020 KB Output is correct
16 Correct 954 ms 57380 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 25196 KB Output is correct
2 Correct 996 ms 58256 KB Output is correct
3 Correct 972 ms 57360 KB Output is correct
4 Execution timed out 1006 ms 59792 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 880 ms 53480 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 25196 KB Output is correct
2 Correct 18 ms 25324 KB Output is correct
3 Correct 18 ms 25324 KB Output is correct
4 Correct 18 ms 25324 KB Output is correct
5 Correct 18 ms 25324 KB Output is correct
6 Correct 19 ms 25324 KB Output is correct
7 Correct 18 ms 25324 KB Output is correct
8 Correct 19 ms 25324 KB Output is correct
9 Correct 18 ms 25324 KB Output is correct
10 Correct 18 ms 25324 KB Output is correct
11 Correct 18 ms 25324 KB Output is correct
12 Correct 18 ms 25324 KB Output is correct
13 Correct 18 ms 25324 KB Output is correct
14 Correct 18 ms 25324 KB Output is correct
15 Correct 18 ms 25340 KB Output is correct
16 Correct 18 ms 25324 KB Output is correct
17 Correct 19 ms 25324 KB Output is correct
18 Correct 18 ms 25324 KB Output is correct
19 Correct 18 ms 25324 KB Output is correct
20 Correct 18 ms 25324 KB Output is correct
21 Correct 18 ms 25324 KB Output is correct
22 Correct 18 ms 25324 KB Output is correct
23 Correct 18 ms 25324 KB Output is correct
24 Correct 18 ms 25324 KB Output is correct
25 Correct 18 ms 25324 KB Output is correct
26 Correct 18 ms 25324 KB Output is correct
27 Correct 18 ms 25324 KB Output is correct
28 Correct 18 ms 25324 KB Output is correct
29 Correct 18 ms 25324 KB Output is correct
30 Correct 18 ms 25324 KB Output is correct
31 Correct 19 ms 25324 KB Output is correct
32 Correct 18 ms 25324 KB Output is correct
33 Execution timed out 1014 ms 58916 KB Time limit exceeded
34 Halted 0 ms 0 KB -