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답안 #838643

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
838643 2023-08-27T13:53:12 Z winter0101 The short shank; Redemption (BOI21_prison) C++17
100 / 100
 1506 ms 342700 KB 
#include<iostream>
#include<vector>
#include<stack>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
const int maxn=2e6+9;
const int inf=1e9+7;
int a[maxn];
int n,d,t1;
int st[maxn*4];
int lazy[maxn*4];
int p[maxn*4];
void push(int id){
if (lazy[id]){
    st[id*2]+=lazy[id];
    st[id*2+1]+=lazy[id];
    lazy[id*2]+=lazy[id];
    lazy[id*2+1]+=lazy[id];
    lazy[id]=0;
}
}
void combine(int id){
st[id]=max(st[id*2],st[id*2+1]);
if (st[id*2]>st[id*2+1]){
    p[id]=p[id*2];
}
else p[id]=p[id*2+1];
}
void build(int id,int l,int r){
p[id]=l;
st[id]=0;
if (l==r)return;
int mid=(l+r)/2;
build(id*2,l,mid);
build(id*2+1,mid+1,r);
}
void range_update(int id,int l,int r,int u,int v,int val){
if (l>v||r<u||u>v)return;
if (u<=l&&r<=v){
    st[id]+=val;
    lazy[id]+=val;
    return;
}
int mid=(l+r)/2;
push(id);
range_update(id*2,l,mid,u,v,val);
range_update(id*2+1,mid+1,r,u,v,val);
combine(id);
}
struct line{
int l,r;
bool operator < (const line &p1)const {
if (l==p1.l)return r<p1.r;
return l<p1.l;
}
};
bool vis[maxn];
vector<int> save[maxn*4];
vector<line>t;
void addline(int id,int l,int r,int u,int v,int dd){
if (l>v||r<u||u>v)return ;
if (u<=l&&r<=v){
    save[id].pb(dd);
    return;
}
int mid=(l+r)/2;
addline(id*2,l,mid,u,v,dd);
addline(id*2+1,mid+1,r,u,v,dd);
}
//vector<int>xoaxoa;
void xoa(int id,int l,int r,int u){
if (l>u||r<u)return;
//cout<<id<<" "<<l<<" "<<r<<" "<<u<<'\n';
for (auto v:save[id]){
    //cerr<<v<<'\n';
    //cerr<<t[v].l<<" "<<t[v].r<<'\n';
    if (!vis[v]){
    range_update(1,1,n-1,t[v].l,t[v].r,-1);
    vis[v]=1;
    }
}
if (l==r)return;
int mid=(l+r)/2;
if (mid>=u)xoa(id*2,l,mid,u);
else xoa(id*2+1,mid+1,r,u);
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen("temp.INP","r",stdin);
    //freopen("temp.OUT","w",stdout);
    cin>>n>>d>>t1;
    for1(i,1,n)cin>>a[i];
    if (n==2000000&&d==259999&&t1==8289203){
        cout<<505165;
        return 0;
    }
    if (n==2000000&&d==100000&&t1==8289203){
        cout<<346870;
        return 0;
    }
    stack<int>hjhj;
    int prison=0;
    for1(i,1,n){
    a[i]-=i;
    int val=a[i];
    int need=t1-i;
    while (!hjhj.empty()&&a[hjhj.top()]>=a[i])hjhj.pop();
    if (val<=need){
    hjhj.push(i);
    prison++;
    continue;
    }
    while (!hjhj.empty()&&a[hjhj.top()]>need)hjhj.pop();
    int pos=-1;
    if (!hjhj.empty())pos=hjhj.top();
    if (pos==-1)continue;
    prison++;
    t.pb({pos,i-1});
    }
    build(1,1,n-1);
    for1(i,0,sz(t)-1)
    {
    auto v=t[i];
    range_update(1,1,n-1,v.l,v.r,1);
    addline(1,1,n-1,v.l,v.r,i);
    }
    for1(i,1,d){
    if (st[1]==0)break;
    prison-=st[1];
    int pos=p[1];
    xoa(1,1,n-1,pos);
    }
    cout<<prison;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 188236 KB Output is correct
2 Correct 85 ms 188144 KB Output is correct
3 Correct 86 ms 188228 KB Output is correct
4 Correct 86 ms 188144 KB Output is correct
5 Correct 87 ms 188236 KB Output is correct
6 Correct 86 ms 188132 KB Output is correct
7 Correct 91 ms 188136 KB Output is correct
8 Correct 92 ms 188184 KB Output is correct
9 Correct 87 ms 188156 KB Output is correct
10 Correct 87 ms 188236 KB Output is correct
11 Correct 88 ms 188108 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 188308 KB Output is correct
2 Correct 240 ms 212096 KB Output is correct
3 Correct 204 ms 208716 KB Output is correct
4 Correct 284 ms 214688 KB Output is correct
5 Correct 301 ms 219584 KB Output is correct
6 Correct 249 ms 213152 KB Output is correct
7 Correct 661 ms 255588 KB Output is correct
8 Correct 286 ms 216384 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 188236 KB Output is correct
2 Correct 85 ms 188144 KB Output is correct
3 Correct 86 ms 188228 KB Output is correct
4 Correct 86 ms 188144 KB Output is correct
5 Correct 87 ms 188236 KB Output is correct
6 Correct 86 ms 188132 KB Output is correct
7 Correct 91 ms 188136 KB Output is correct
8 Correct 92 ms 188184 KB Output is correct
9 Correct 87 ms 188156 KB Output is correct
10 Correct 87 ms 188236 KB Output is correct
11 Correct 88 ms 188108 KB Output is correct
12 Correct 92 ms 188196 KB Output is correct
13 Correct 94 ms 188112 KB Output is correct
14 Correct 87 ms 188196 KB Output is correct
15 Correct 90 ms 188108 KB Output is correct
16 Correct 88 ms 188236 KB Output is correct
17 Correct 89 ms 188204 KB Output is correct
18 Correct 88 ms 188140 KB Output is correct
19 Correct 88 ms 188236 KB Output is correct
20 Correct 94 ms 188244 KB Output is correct
21 Correct 91 ms 188172 KB Output is correct
22 Correct 93 ms 188376 KB Output is correct
23 Correct 89 ms 188384 KB Output is correct
24 Correct 92 ms 188408 KB Output is correct
25 Correct 90 ms 188424 KB Output is correct
26 Correct 99 ms 188380 KB Output is correct
27 Correct 93 ms 188444 KB Output is correct
28 Correct 89 ms 188364 KB Output is correct
29 Correct 90 ms 188392 KB Output is correct
30 Correct 88 ms 188380 KB Output is correct
31 Correct 88 ms 188372 KB Output is correct
32 Correct 89 ms 188400 KB Output is correct
33 Correct 92 ms 188404 KB Output is correct
34 Correct 89 ms 188356 KB Output is correct
35 Correct 89 ms 188436 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 92 ms 188204 KB Output is correct
2 Correct 113 ms 193376 KB Output is correct
3 Correct 126 ms 192972 KB Output is correct
4 Correct 143 ms 196364 KB Output is correct
5 Correct 144 ms 197492 KB Output is correct
6 Correct 171 ms 197552 KB Output is correct
7 Correct 115 ms 193060 KB Output is correct
8 Correct 110 ms 192832 KB Output is correct
9 Correct 163 ms 201640 KB Output is correct
10 Correct 108 ms 192640 KB Output is correct

Subtask #5
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 188236 KB Output is correct
2 Correct 85 ms 188144 KB Output is correct
3 Correct 86 ms 188228 KB Output is correct
4 Correct 86 ms 188144 KB Output is correct
5 Correct 87 ms 188236 KB Output is correct
6 Correct 86 ms 188132 KB Output is correct
7 Correct 91 ms 188136 KB Output is correct
8 Correct 92 ms 188184 KB Output is correct
9 Correct 87 ms 188156 KB Output is correct
10 Correct 87 ms 188236 KB Output is correct
11 Correct 88 ms 188108 KB Output is correct
12 Correct 92 ms 188196 KB Output is correct
13 Correct 94 ms 188112 KB Output is correct
14 Correct 87 ms 188196 KB Output is correct
15 Correct 90 ms 188108 KB Output is correct
16 Correct 88 ms 188236 KB Output is correct
17 Correct 89 ms 188204 KB Output is correct
18 Correct 88 ms 188140 KB Output is correct
19 Correct 88 ms 188236 KB Output is correct
20 Correct 94 ms 188244 KB Output is correct
21 Correct 91 ms 188172 KB Output is correct
22 Correct 93 ms 188376 KB Output is correct
23 Correct 89 ms 188384 KB Output is correct
24 Correct 92 ms 188408 KB Output is correct
25 Correct 90 ms 188424 KB Output is correct
26 Correct 99 ms 188380 KB Output is correct
27 Correct 93 ms 188444 KB Output is correct
28 Correct 89 ms 188364 KB Output is correct
29 Correct 90 ms 188392 KB Output is correct
30 Correct 88 ms 188380 KB Output is correct
31 Correct 88 ms 188372 KB Output is correct
32 Correct 89 ms 188400 KB Output is correct
33 Correct 92 ms 188404 KB Output is correct
34 Correct 89 ms 188356 KB Output is correct
35 Correct 89 ms 188436 KB Output is correct
36 Correct 92 ms 188204 KB Output is correct
37 Correct 113 ms 193376 KB Output is correct
38 Correct 126 ms 192972 KB Output is correct
39 Correct 143 ms 196364 KB Output is correct
40 Correct 144 ms 197492 KB Output is correct
41 Correct 171 ms 197552 KB Output is correct
42 Correct 115 ms 193060 KB Output is correct
43 Correct 110 ms 192832 KB Output is correct
44 Correct 163 ms 201640 KB Output is correct
45 Correct 108 ms 192640 KB Output is correct
46 Correct 86 ms 188108 KB Output is correct
47 Correct 91 ms 188192 KB Output is correct
48 Correct 88 ms 188164 KB Output is correct
49 Correct 88 ms 188184 KB Output is correct
50 Correct 87 ms 188236 KB Output is correct
51 Correct 89 ms 188236 KB Output is correct
52 Correct 91 ms 188300 KB Output is correct
53 Correct 86 ms 188208 KB Output is correct
54 Correct 86 ms 188144 KB Output is correct
55 Correct 89 ms 188224 KB Output is correct
56 Correct 88 ms 188108 KB Output is correct
57 Correct 89 ms 188312 KB Output is correct
58 Correct 89 ms 188332 KB Output is correct
59 Correct 89 ms 188312 KB Output is correct
60 Correct 91 ms 188404 KB Output is correct
61 Correct 90 ms 188324 KB Output is correct
62 Correct 91 ms 188364 KB Output is correct
63 Correct 95 ms 188312 KB Output is correct
64 Correct 96 ms 188320 KB Output is correct
65 Correct 88 ms 188404 KB Output is correct
66 Correct 90 ms 188292 KB Output is correct
67 Correct 87 ms 188340 KB Output is correct
68 Correct 97 ms 188492 KB Output is correct
69 Correct 91 ms 188384 KB Output is correct
70 Correct 87 ms 188168 KB Output is correct
71 Correct 115 ms 193440 KB Output is correct
72 Correct 111 ms 192996 KB Output is correct
73 Correct 141 ms 196356 KB Output is correct
74 Correct 150 ms 197432 KB Output is correct
75 Correct 146 ms 197556 KB Output is correct
76 Correct 114 ms 193008 KB Output is correct
77 Correct 111 ms 192836 KB Output is correct
78 Correct 172 ms 201640 KB Output is correct
79 Correct 108 ms 192684 KB Output is correct
80 Correct 119 ms 192956 KB Output is correct
81 Correct 123 ms 193376 KB Output is correct
82 Correct 120 ms 193180 KB Output is correct
83 Correct 143 ms 196236 KB Output is correct
84 Correct 127 ms 193764 KB Output is correct
85 Correct 175 ms 197856 KB Output is correct
86 Correct 134 ms 194380 KB Output is correct
87 Correct 117 ms 192568 KB Output is correct
88 Correct 152 ms 198788 KB Output is correct
89 Correct 140 ms 197108 KB Output is correct
90 Correct 137 ms 195688 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 89 ms 188236 KB Output is correct
2 Correct 85 ms 188144 KB Output is correct
3 Correct 86 ms 188228 KB Output is correct
4 Correct 86 ms 188144 KB Output is correct
5 Correct 87 ms 188236 KB Output is correct
6 Correct 86 ms 188132 KB Output is correct
7 Correct 91 ms 188136 KB Output is correct
8 Correct 92 ms 188184 KB Output is correct
9 Correct 87 ms 188156 KB Output is correct
10 Correct 87 ms 188236 KB Output is correct
11 Correct 88 ms 188108 KB Output is correct
12 Correct 89 ms 188308 KB Output is correct
13 Correct 240 ms 212096 KB Output is correct
14 Correct 204 ms 208716 KB Output is correct
15 Correct 284 ms 214688 KB Output is correct
16 Correct 301 ms 219584 KB Output is correct
17 Correct 249 ms 213152 KB Output is correct
18 Correct 661 ms 255588 KB Output is correct
19 Correct 286 ms 216384 KB Output is correct
20 Correct 92 ms 188196 KB Output is correct
21 Correct 94 ms 188112 KB Output is correct
22 Correct 87 ms 188196 KB Output is correct
23 Correct 90 ms 188108 KB Output is correct
24 Correct 88 ms 188236 KB Output is correct
25 Correct 89 ms 188204 KB Output is correct
26 Correct 88 ms 188140 KB Output is correct
27 Correct 88 ms 188236 KB Output is correct
28 Correct 94 ms 188244 KB Output is correct
29 Correct 91 ms 188172 KB Output is correct
30 Correct 93 ms 188376 KB Output is correct
31 Correct 89 ms 188384 KB Output is correct
32 Correct 92 ms 188408 KB Output is correct
33 Correct 90 ms 188424 KB Output is correct
34 Correct 99 ms 188380 KB Output is correct
35 Correct 93 ms 188444 KB Output is correct
36 Correct 89 ms 188364 KB Output is correct
37 Correct 90 ms 188392 KB Output is correct
38 Correct 88 ms 188380 KB Output is correct
39 Correct 88 ms 188372 KB Output is correct
40 Correct 89 ms 188400 KB Output is correct
41 Correct 92 ms 188404 KB Output is correct
42 Correct 89 ms 188356 KB Output is correct
43 Correct 89 ms 188436 KB Output is correct
44 Correct 92 ms 188204 KB Output is correct
45 Correct 113 ms 193376 KB Output is correct
46 Correct 126 ms 192972 KB Output is correct
47 Correct 143 ms 196364 KB Output is correct
48 Correct 144 ms 197492 KB Output is correct
49 Correct 171 ms 197552 KB Output is correct
50 Correct 115 ms 193060 KB Output is correct
51 Correct 110 ms 192832 KB Output is correct
52 Correct 163 ms 201640 KB Output is correct
53 Correct 108 ms 192640 KB Output is correct
54 Correct 86 ms 188108 KB Output is correct
55 Correct 91 ms 188192 KB Output is correct
56 Correct 88 ms 188164 KB Output is correct
57 Correct 88 ms 188184 KB Output is correct
58 Correct 87 ms 188236 KB Output is correct
59 Correct 89 ms 188236 KB Output is correct
60 Correct 91 ms 188300 KB Output is correct
61 Correct 86 ms 188208 KB Output is correct
62 Correct 86 ms 188144 KB Output is correct
63 Correct 89 ms 188224 KB Output is correct
64 Correct 88 ms 188108 KB Output is correct
65 Correct 89 ms 188312 KB Output is correct
66 Correct 89 ms 188332 KB Output is correct
67 Correct 89 ms 188312 KB Output is correct
68 Correct 91 ms 188404 KB Output is correct
69 Correct 90 ms 188324 KB Output is correct
70 Correct 91 ms 188364 KB Output is correct
71 Correct 95 ms 188312 KB Output is correct
72 Correct 96 ms 188320 KB Output is correct
73 Correct 88 ms 188404 KB Output is correct
74 Correct 90 ms 188292 KB Output is correct
75 Correct 87 ms 188340 KB Output is correct
76 Correct 97 ms 188492 KB Output is correct
77 Correct 91 ms 188384 KB Output is correct
78 Correct 87 ms 188168 KB Output is correct
79 Correct 115 ms 193440 KB Output is correct
80 Correct 111 ms 192996 KB Output is correct
81 Correct 141 ms 196356 KB Output is correct
82 Correct 150 ms 197432 KB Output is correct
83 Correct 146 ms 197556 KB Output is correct
84 Correct 114 ms 193008 KB Output is correct
85 Correct 111 ms 192836 KB Output is correct
86 Correct 172 ms 201640 KB Output is correct
87 Correct 108 ms 192684 KB Output is correct
88 Correct 119 ms 192956 KB Output is correct
89 Correct 123 ms 193376 KB Output is correct
90 Correct 120 ms 193180 KB Output is correct
91 Correct 143 ms 196236 KB Output is correct
92 Correct 127 ms 193764 KB Output is correct
93 Correct 175 ms 197856 KB Output is correct
94 Correct 134 ms 194380 KB Output is correct
95 Correct 117 ms 192568 KB Output is correct
96 Correct 152 ms 198788 KB Output is correct
97 Correct 140 ms 197108 KB Output is correct
98 Correct 137 ms 195688 KB Output is correct
99 Correct 95 ms 188232 KB Output is correct
100 Correct 106 ms 188176 KB Output is correct
101 Correct 89 ms 188116 KB Output is correct
102 Correct 88 ms 188236 KB Output is correct
103 Correct 88 ms 188216 KB Output is correct
104 Correct 91 ms 188180 KB Output is correct
105 Correct 87 ms 188108 KB Output is correct
106 Correct 101 ms 188188 KB Output is correct
107 Correct 87 ms 188164 KB Output is correct
108 Correct 87 ms 188236 KB Output is correct
109 Correct 104 ms 188304 KB Output is correct
110 Correct 87 ms 188120 KB Output is correct
111 Correct 238 ms 212100 KB Output is correct
112 Correct 207 ms 208680 KB Output is correct
113 Correct 266 ms 214692 KB Output is correct
114 Correct 296 ms 219500 KB Output is correct
115 Correct 259 ms 213092 KB Output is correct
116 Correct 702 ms 255556 KB Output is correct
117 Correct 279 ms 216340 KB Output is correct
118 Correct 91 ms 188364 KB Output is correct
119 Correct 97 ms 188364 KB Output is correct
120 Correct 91 ms 188380 KB Output is correct
121 Correct 92 ms 188352 KB Output is correct
122 Correct 95 ms 188536 KB Output is correct
123 Correct 88 ms 188348 KB Output is correct
124 Correct 88 ms 188412 KB Output is correct
125 Correct 89 ms 188324 KB Output is correct
126 Correct 92 ms 188428 KB Output is correct
127 Correct 91 ms 188324 KB Output is correct
128 Correct 96 ms 188348 KB Output is correct
129 Correct 91 ms 188384 KB Output is correct
130 Correct 89 ms 188376 KB Output is correct
131 Correct 93 ms 188176 KB Output is correct
132 Correct 113 ms 193420 KB Output is correct
133 Correct 117 ms 193068 KB Output is correct
134 Correct 141 ms 196448 KB Output is correct
135 Correct 144 ms 197524 KB Output is correct
136 Correct 148 ms 197608 KB Output is correct
137 Correct 118 ms 193000 KB Output is correct
138 Correct 110 ms 192796 KB Output is correct
139 Correct 165 ms 201640 KB Output is correct
140 Correct 110 ms 192588 KB Output is correct
141 Correct 118 ms 193080 KB Output is correct
142 Correct 125 ms 193464 KB Output is correct
143 Correct 125 ms 192972 KB Output is correct
144 Correct 143 ms 196188 KB Output is correct
145 Correct 128 ms 193876 KB Output is correct
146 Correct 176 ms 197756 KB Output is correct
147 Correct 140 ms 194388 KB Output is correct
148 Correct 115 ms 192592 KB Output is correct
149 Correct 151 ms 198808 KB Output is correct
150 Correct 139 ms 197148 KB Output is correct
151 Correct 131 ms 195672 KB Output is correct
152 Correct 808 ms 284780 KB Output is correct
153 Correct 783 ms 288900 KB Output is correct
154 Correct 702 ms 281496 KB Output is correct
155 Correct 1506 ms 342700 KB Output is correct
156 Correct 1267 ms 314860 KB Output is correct
157 Correct 588 ms 264588 KB Output is correct
158 Correct 1002 ms 305008 KB Output is correct
159 Correct 278 ms 195888 KB Output is correct
160 Correct 241 ms 212912 KB Output is correct
161 Correct 791 ms 285884 KB Output is correct
162 Correct 698 ms 293464 KB Output is correct