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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#318875 | #7616. Jump Graph | arnold518 | WA | 1ms | 3988kb | C++17 | 2.1kb | 2024-02-01 03:26:27 | 2024-02-01 03:26:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 3e5;
int N, A[MAXN+10];
struct SEG
{
pii tree[MAXN*4+10];
void init(int node, int tl, int tr)
{
if(tl==tr)
{
tree[node]=pii(A[tl], tl);
return;
}
int mid=tl+tr>>1;
init(node*2, tl, mid);
init(node*2+1, mid+1, tr);
tree[node]=max(tree[node*2], tree[node*2+1]);
}
pii query(int node, int tl, int tr, int l, int r)
{
if(l<=tl && tr<=r) return tree[node];
if(r<tl || tr<l) return pii(0, 0);
int mid=tl+tr>>1;
return max(query(node*2, tl, mid, l, r), query(node*2+1, mid+1, tr, l, r));
}
}seg;
ll ans[MAXN+10], dp1[MAXN+10], dp2[MAXN+10];
int L[MAXN+10], R[MAXN+10], sz[MAXN+10], root;
pii P[MAXN+10];
int dfs(int l, int r)
{
if(l>r) return -1;
int t=seg.query(1, 1, N, l, r).second;
L[t]=dfs(l, t-1);
R[t]=dfs(t+1, r);
sz[t]=r-l+1;
P[t]={l, r};
return t;
}
void dfs2(int now)
{
ll lv=0, rv=0, ls=0, rs=0;
auto [l, r] = P[now];
if(L[now]!=-1)
{
dfs2(L[now]);
dp1[now]+=sz[L[now]]+dp1[L[now]];
dp2[now]+=dp2[L[now]];
lv=sz[L[now]]+dp1[L[now]];
if(l!=1) lv=min(lv, sz[L[now]]+dp2[L[now]]);
ls=sz[L[now]];
}
if(R[now]!=-1)
{
dfs2(R[now]);
dp1[now]+=dp1[R[now]];
dp2[now]+=sz[R[now]]+dp2[R[now]];
rv=sz[R[now]]+dp2[R[now]];
if(r!=N) rv=min(rv, sz[R[now]]+dp1[R[now]]);
rs=sz[R[now]];
}
ans[now]+=lv+rv;
ans[now+1]-=lv+rv;
ans[l]+=rv+rs+1;
ans[now]-=rv+rs+1;
ans[now+1]+=lv+ls+1;
ans[r+1]-=lv+ls+1;
}
int main()
{
scanf("%d", &N);
for(int i=1; i<=N; i++) scanf("%d", &A[i]);
seg.init(1, 1, N);
root=dfs(1, N);
dfs2(root);
for(int i=1; i<=N; i++) ans[i]+=ans[i-1];
for(int i=1; i<=N; i++) printf("%lld ", ans[i]);
printf("\n");
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3912kb
input:
6 1 6 3 2 5 4
output:
11 7 7 7 6 8
result:
ok single line: '11 7 7 7 6 8 '
Test #2:
score: 0
Accepted
time: 0ms
memory: 3904kb
input:
2 1 2
output:
1 1
result:
ok single line: '1 1 '
Test #3:
score: -100
Wrong Answer
time: 0ms
memory: 3988kb
input:
36 9 29 1 3 14 31 24 21 10 18 22 16 8 7 15 12 17 19 25 28 27 34 11 6 32 4 20 13 2 35 23 26 33 36 30 5
output:
96 93 94 94 94 82 76 74 74 74 68 67 66 66 65 67 67 71 78 86 99 95 118 118 114 117 115 116 116 113 142 142 142 143 175 175
result:
wrong answer 1st lines differ - expected: '92 89 90 90 91 78 73 71 71 71 ...110 107 136 136 137 136 168 168', found: '96 93 94 94 94 82 76 74 74 74 ...16 113 142 142 142 143 175 175 '