oj.uz

Submission #936620

# Submission time Handle Problem Language Result Execution time Memory
936620 2024-03-02T11:58:22 Z Batorgil952 Fancy Fence (CEOI20_fancyfence) C++14
100 / 100
 54 ms 14932 KB 
// **y ***** Khoroo
#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair

using namespace std;

const ll N=1e5+5, mod=1e9+7;
ll h[N], w[N], tree[4*N], urt[4*N];
ll n;

void build(ll v, ll l, ll r){
	if(l==r) tree[v]=l, urt[v]=w[l];
	else{
		ll mid=(l+r)/2;
		build(2*v, l, mid);
		build(2*v+1, mid+1, r);
		if(h[tree[2*v]]<=h[tree[2*v+1]]){
			tree[v]=tree[2*v];
		}
		else{
			tree[v]=tree[2*v+1];
		}
		urt[v]=urt[2*v]+urt[2*v+1];
	}
}

ll query1(ll v, ll l, ll r, ll ql, ll qr){
	if(qr<l || r<ql) return -1;
	if(ql<=l && r<=qr) return tree[v];
	ll mid=(l+r)/2;
	ll x=query1(2*v, l, mid, ql, qr);
	ll y=query1(2*v+1, mid+1, r, ql, qr);
	if(x==-1) return y;
	if(y==-1) return x;
	if(h[x]<=h[y]) return x;
	return y;
 }

ll query2(ll v, ll l, ll r, ll ql, ll qr){
	if(qr<l || r<ql) return 0;
	if(ql<=l && r<=qr) return urt[v];
	ll mid=(l+r)/2;
	return query2(2*v, l, mid, ql, qr)+query2(2*v+1, mid+1, r, ql, qr);
}

ll Fun(ll l, ll r, ll tuvshin){
	if(l>r) return 0;
	ll p=query1(1, 1, n, l, r);
	ll q=query2(1, 1, n, l, r);
	ll a=h[p]-tuvshin;
	ll b=tuvshin;
	return ((((((q%mod)*((q+1)%mod))%mod)*500000004)%mod)*((((((2*b+a+1)%mod)*a)%mod)*500000004)%mod)%mod+Fun(l, p-1, h[p])+Fun(p+1, r, h[p]))%mod;
}

int main(){
	ll i;
	
	scanf("%lld",&n);
	
	for(i=1; i<=n; i++){
		scanf("%lld",&h[i]);
	}
	
	for(i=1; i<=n; i++){
		scanf("%lld",&w[i]);
	}
	
	build(1, 1, n);
	
	printf("%lld\n", Fun(1, n, 0));
	
	return 0;
}

Compilation message

fancyfence.cpp: In function 'int main()':
fancyfence.cpp:60:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |  scanf("%lld",&n);
      |  ~~~~~^~~~~~~~~~~
fancyfence.cpp:63:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |   scanf("%lld",&h[i]);
      |   ~~~~~^~~~~~~~~~~~~~
fancyfence.cpp:67:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   67 |   scanf("%lld",&w[i]);
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 22 ms 8972 KB Output is correct
4 Correct 45 ms 13140 KB Output is correct
5 Correct 49 ms 11600 KB Output is correct
6 Correct 46 ms 9808 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 5 ms 7512 KB Output is correct
3 Correct 23 ms 10576 KB Output is correct
4 Correct 46 ms 14708 KB Output is correct
5 Correct 51 ms 14900 KB Output is correct
6 Correct 1 ms 4440 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 5 ms 7380 KB Output is correct
4 Correct 24 ms 10808 KB Output is correct
5 Correct 46 ms 14780 KB Output is correct
6 Correct 45 ms 14932 KB Output is correct
7 Correct 1 ms 4440 KB Output is correct
8 Correct 5 ms 7516 KB Output is correct
9 Correct 24 ms 10576 KB Output is correct
10 Correct 45 ms 14676 KB Output is correct
11 Correct 46 ms 14632 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4544 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct

Subtask #7
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4484 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4548 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 22 ms 8788 KB Output is correct
12 Correct 44 ms 13136 KB Output is correct
13 Correct 44 ms 11048 KB Output is correct
14 Correct 48 ms 9692 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 5 ms 7512 KB Output is correct
17 Correct 25 ms 10580 KB Output is correct
18 Correct 46 ms 14928 KB Output is correct
19 Correct 46 ms 14856 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 5 ms 7516 KB Output is correct
22 Correct 27 ms 10664 KB Output is correct
23 Correct 45 ms 14576 KB Output is correct
24 Correct 47 ms 14700 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 2 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 5 ms 7256 KB Output is correct
31 Correct 5 ms 7004 KB Output is correct
32 Correct 24 ms 8284 KB Output is correct
33 Correct 25 ms 8452 KB Output is correct
34 Correct 46 ms 9776 KB Output is correct
35 Correct 46 ms 10012 KB Output is correct
36 Correct 47 ms 10076 KB Output is correct
37 Correct 50 ms 10076 KB Output is correct
38 Correct 1 ms 4440 KB Output is correct
39 Correct 49 ms 10072 KB Output is correct
40 Correct 51 ms 10072 KB Output is correct
41 Correct 54 ms 11092 KB Output is correct
42 Correct 45 ms 14672 KB Output is correct