#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int mxn=3e5+5;
ll t[4*mxn]{0},lz[4*mxn]{0};
void push(int i,int l,int r){
if(lz[i]==1e16)return;
t[i]=lz[i]*(r-l+1);
if(l<r)lz[2*i]=lz[i],lz[2*i+1]=lz[i];
lz[i]=1e16;
}
void update(int i,int l,int r,int tl,int tr,ll v){
push(i,l,r);
if(r<tl||l>tr)return;
if(r<=tr&&l>=tl){
lz[i]=v;push(i,l,r);return;
}int m=(l+r)>>1;
update(2*i,l,m,tl,tr,v);update(2*i+1,m+1,r,tl,tr,v);
t[i]=t[2*i]+t[2*i+1];
}
ll query(int i,int l,int r,int tl,int tr){
push(i,l,r);
if(r<tl||l>tr)return 0;
if(r<=tr&&l>=tl)return t[i];
int m=(l+r)>>1;
return query(2*i,l,m,tl,tr)+query(2*i+1,m+1,r,tl,tr);
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);
int n;ll d;cin>>n>>d;ll c[n+1],a[n+1],b[n+1],qa[n+1];
for(int i=1;i<=4*n;i++)lz[i]=1e16;
for(int i=1;i<=n;i++){
cin>>c[i];b[i]=c[i]%d,a[i]=c[i]/d;
}ll pf[n+1]={0},spf[n+1]={0};
for(int i=2;i<=n;i++)pf[i]=pf[i-1]+(b[i]<b[i-1]);
for(int i=1;i<=n;i++)spf[i]=spf[i-1]+pf[i],qa[i]=qa[i-1]+a[i];
vector<pii>qr[n+1];int q;cin>>q;ll ans[q+1]={0};
for(int i=1;i<=q;i++){
int l,r;cin>>l>>r;qr[r].pb({l,i});
}vector<pii>g;
for(int i=1;i<=n;i++){
int l=1,r=i;
while(l<r){
int m=(l+r)>>1;
if(query(1,1,n,m,m)>a[i]-pf[i])r=m;
else l=m+1;
}update(1,1,n,l,i,a[i]-pf[i]);
for(auto it : qr[i]){
ans[it.s]=qa[i]-qa[it.f-1];
ans[it.s]-=query(1,1,n,it.f,i);
ans[it.s]-=spf[i]-spf[it.f-1];
if(query(1,1,n,it.f,it.f)+pf[it.f]<0)ans[it.s]=-1;
}
}
for(int i=1;i<=q;i++)cout<<ans[i]<<'\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2392 KB |
Output is correct |
3 |
Correct |
1 ms |
2392 KB |
Output is correct |
4 |
Correct |
7 ms |
2972 KB |
Output is correct |
5 |
Correct |
6 ms |
2792 KB |
Output is correct |
6 |
Correct |
4 ms |
2652 KB |
Output is correct |
7 |
Correct |
5 ms |
2800 KB |
Output is correct |
8 |
Correct |
6 ms |
2908 KB |
Output is correct |
9 |
Correct |
7 ms |
2908 KB |
Output is correct |
10 |
Correct |
7 ms |
2908 KB |
Output is correct |
11 |
Correct |
6 ms |
2908 KB |
Output is correct |
12 |
Correct |
5 ms |
2908 KB |
Output is correct |
13 |
Correct |
6 ms |
2976 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1075 ms |
50308 KB |
Output is correct |
2 |
Correct |
1093 ms |
49748 KB |
Output is correct |
3 |
Correct |
140 ms |
9932 KB |
Output is correct |
4 |
Correct |
1177 ms |
49348 KB |
Output is correct |
5 |
Correct |
1198 ms |
49236 KB |
Output is correct |
6 |
Correct |
1094 ms |
49232 KB |
Output is correct |
7 |
Correct |
1091 ms |
49232 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
164 ms |
13756 KB |
Output is correct |
2 |
Correct |
1171 ms |
61524 KB |
Output is correct |
3 |
Correct |
1232 ms |
61524 KB |
Output is correct |
4 |
Correct |
1137 ms |
61540 KB |
Output is correct |
5 |
Correct |
1191 ms |
61332 KB |
Output is correct |
6 |
Correct |
1112 ms |
55088 KB |
Output is correct |
7 |
Correct |
1106 ms |
54872 KB |
Output is correct |
8 |
Correct |
1112 ms |
58284 KB |
Output is correct |
9 |
Correct |
1170 ms |
58284 KB |
Output is correct |
10 |
Correct |
1117 ms |
56716 KB |
Output is correct |
11 |
Correct |
1137 ms |
56728 KB |
Output is correct |
12 |
Correct |
1107 ms |
59808 KB |
Output is correct |
13 |
Correct |
1079 ms |
59792 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
969 ms |
42064 KB |
Output is correct |
2 |
Correct |
1208 ms |
50316 KB |
Output is correct |
3 |
Correct |
385 ms |
19784 KB |
Output is correct |
4 |
Correct |
1219 ms |
58028 KB |
Output is correct |
5 |
Correct |
1089 ms |
58304 KB |
Output is correct |
6 |
Correct |
1200 ms |
61528 KB |
Output is correct |
7 |
Correct |
909 ms |
51272 KB |
Output is correct |
8 |
Correct |
1136 ms |
61264 KB |
Output is correct |
9 |
Correct |
1108 ms |
54100 KB |
Output is correct |
10 |
Correct |
1092 ms |
53780 KB |
Output is correct |
11 |
Correct |
1115 ms |
57900 KB |
Output is correct |
12 |
Correct |
1153 ms |
57372 KB |
Output is correct |
13 |
Correct |
1126 ms |
61084 KB |
Output is correct |
14 |
Correct |
1084 ms |
56916 KB |
Output is correct |
15 |
Correct |
1131 ms |
61092 KB |
Output is correct |
16 |
Correct |
1128 ms |
56916 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
0 ms |
2392 KB |
Output is correct |
3 |
Correct |
1 ms |
2392 KB |
Output is correct |
4 |
Correct |
7 ms |
2972 KB |
Output is correct |
5 |
Correct |
6 ms |
2792 KB |
Output is correct |
6 |
Correct |
4 ms |
2652 KB |
Output is correct |
7 |
Correct |
5 ms |
2800 KB |
Output is correct |
8 |
Correct |
6 ms |
2908 KB |
Output is correct |
9 |
Correct |
7 ms |
2908 KB |
Output is correct |
10 |
Correct |
7 ms |
2908 KB |
Output is correct |
11 |
Correct |
6 ms |
2908 KB |
Output is correct |
12 |
Correct |
5 ms |
2908 KB |
Output is correct |
13 |
Correct |
6 ms |
2976 KB |
Output is correct |
14 |
Correct |
1075 ms |
50308 KB |
Output is correct |
15 |
Correct |
1093 ms |
49748 KB |
Output is correct |
16 |
Correct |
140 ms |
9932 KB |
Output is correct |
17 |
Correct |
1177 ms |
49348 KB |
Output is correct |
18 |
Correct |
1198 ms |
49236 KB |
Output is correct |
19 |
Correct |
1094 ms |
49232 KB |
Output is correct |
20 |
Correct |
1091 ms |
49232 KB |
Output is correct |
21 |
Correct |
164 ms |
13756 KB |
Output is correct |
22 |
Correct |
1171 ms |
61524 KB |
Output is correct |
23 |
Correct |
1232 ms |
61524 KB |
Output is correct |
24 |
Correct |
1137 ms |
61540 KB |
Output is correct |
25 |
Correct |
1191 ms |
61332 KB |
Output is correct |
26 |
Correct |
1112 ms |
55088 KB |
Output is correct |
27 |
Correct |
1106 ms |
54872 KB |
Output is correct |
28 |
Correct |
1112 ms |
58284 KB |
Output is correct |
29 |
Correct |
1170 ms |
58284 KB |
Output is correct |
30 |
Correct |
1117 ms |
56716 KB |
Output is correct |
31 |
Correct |
1137 ms |
56728 KB |
Output is correct |
32 |
Correct |
1107 ms |
59808 KB |
Output is correct |
33 |
Correct |
1079 ms |
59792 KB |
Output is correct |
34 |
Correct |
969 ms |
42064 KB |
Output is correct |
35 |
Correct |
1208 ms |
50316 KB |
Output is correct |
36 |
Correct |
385 ms |
19784 KB |
Output is correct |
37 |
Correct |
1219 ms |
58028 KB |
Output is correct |
38 |
Correct |
1089 ms |
58304 KB |
Output is correct |
39 |
Correct |
1200 ms |
61528 KB |
Output is correct |
40 |
Correct |
909 ms |
51272 KB |
Output is correct |
41 |
Correct |
1136 ms |
61264 KB |
Output is correct |
42 |
Correct |
1108 ms |
54100 KB |
Output is correct |
43 |
Correct |
1092 ms |
53780 KB |
Output is correct |
44 |
Correct |
1115 ms |
57900 KB |
Output is correct |
45 |
Correct |
1153 ms |
57372 KB |
Output is correct |
46 |
Correct |
1126 ms |
61084 KB |
Output is correct |
47 |
Correct |
1084 ms |
56916 KB |
Output is correct |
48 |
Correct |
1131 ms |
61092 KB |
Output is correct |
49 |
Correct |
1128 ms |
56916 KB |
Output is correct |
50 |
Correct |
1160 ms |
61480 KB |
Output is correct |
51 |
Correct |
1139 ms |
55120 KB |
Output is correct |
52 |
Correct |
1129 ms |
58152 KB |
Output is correct |
53 |
Correct |
1081 ms |
56660 KB |
Output is correct |
54 |
Correct |
1197 ms |
59988 KB |
Output is correct |
55 |
Correct |
1136 ms |
61580 KB |
Output is correct |
56 |
Correct |
1174 ms |
56916 KB |
Output is correct |
57 |
Correct |
1214 ms |
53844 KB |
Output is correct |
58 |
Correct |
1199 ms |
53844 KB |
Output is correct |
59 |
Correct |
1208 ms |
59312 KB |
Output is correct |
60 |
Correct |
1212 ms |
56916 KB |
Output is correct |
61 |
Correct |
1093 ms |
56660 KB |
Output is correct |
62 |
Correct |
1108 ms |
56724 KB |
Output is correct |
63 |
Correct |
1117 ms |
59676 KB |
Output is correct |
64 |
Correct |
1132 ms |
56968 KB |
Output is correct |