oj.uz

Submission #111532

# Submission time Handle Problem Language Result Execution time Memory
111532 2019-05-15T14:24:54 Z imaxblue Circle selection (APIO18_circle_selection) C++17
100 / 100
 2811 ms 49392 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define vi vector<int>
#define vpii vector<pii>
#define vp3i vector<p3i>
#define vpll vector<pll>
#define vp3l vector<p3l>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() ((rand() << 14)+rand())
#define scan(X) do{while((X=getchar())<'0'); for(X-='0'; '0'<=(_=getchar()); X=(X<<3)+(X<<1)+_-'0');}while(0)
char _;
#define pi 3.14159265358979323846

int n, x[300005], y[300005], r[300005], sz;
int u[300005];
vector<pii> v;
vector<p3i> w;
vector<pair<int, vector<pair<int, vector<int> > > > > co;
void construct(){
  int X, Y, R, I;
  co.clear();
  //cout << "!" << endl;
  //cout << u[5] << ' ' <<w.size() << "%" << endl;
  w.clear();
  fox(l, n){
    if (u[l] == 0)
      w.pb(mp(mp(x[l]/sz, y[l]/sz), l));
  }
  sort(w.begin(), w.end());
  fox(l, w.size()){
    X = w[l].x.x; Y = w[l].x.y; I = w[l].y;
    //if (u[I]) continue;
    //cout << ' ' << X << ' ' << Y << ' ' << I << endl;
    if (co.empty() || co.back().x != X) co.pb(mp(X, vector<pair<int, vector<int> > >()));
    if (co.back().y.empty() || co.back().y.back().x != Y) co.back().y.pb(mp(Y, vector<int>()));
    //if (I==5 || I == 10) cout << "*" << X << ' ' << Y << ' ' << co.back().y.back().y.size()<< endl;
    co.back().y.back().y.pb(I);
    //if (I == 5 || ) cout << co.back().x << ' ' << co.back().y.back().x << ' ' << endl;
  }
}
void query(int P, int Cx, int Cy){
  int I, I2, P2;
  I = lb(co.begin(), co.end(), mp(Cx, vector<pair<int, vector<int> > >())) - co.begin();;
  if (I == co.size() || co[I].x != Cx) return;
  //if (P == 5) cout << "*";
  I2 = lb(co[I].y.begin(), co[I].y.end(), mp(Cy, vector<int>())) - co[I].y.begin();
  //if (P == 5) cout << I << ' ' << I2 << ' ' << co[I].y[I2].x << ' ' << Cy << endl;
  if (I2 == co[I].y.size() || co[I].y[I2].x != Cy) return;
  vector<int> tmp = co[I].y[I2].y;
  //if (P == 5) cout << tmp.size() << endl;
  fox(l, tmp.size()){
    P2 = tmp[l];
    //if (P == 5) cout << P2 << endl;
    if (u[P2]) continue;
    if (1LL*(x[P]-x[P2])*(x[P]-x[P2])+1LL*(y[P]-y[P2])*(y[P]-y[P2]) <= 1LL*(r[P]+r[P2])*(r[P]+r[P2])){
      u[P2] = P+1;
    }
  }
}
int32_t main(){
  scanf("%i", &n);
  sz = 2000000001;
  //co.pb(mp(0, vector<int>()));
  //co[0].y.pb(mp(0, vector<int>()));
  fox(l, n){
    scanf("%i %i %i", &x[l], &y[l], &r[l]);
    v.pb(mp(-r[l], l));
    w.pb(mp(mp(x[l], y[l]), l));
    //co[0].y[0].y.pb(l);
  }
  sort(v.begin(), v.end());
  sort(w.begin(), w.end());
  construct();
  fox(l, v.size()){
    v[l].x *= -1;
    if (u[v[l].y]) continue;
    while(v[l].x <= sz/4){
      //cout << v[l].x << ' ' << sz << endl;
      sz/=2;
      construct();
    }
    //cout << v[l].y << ' ' << sz << endl;
    //continue;
    query(v[l].y, x[v[l].y]/sz-1, y[v[l].y]/sz+1);
    query(v[l].y, x[v[l].y]/sz-1, y[v[l].y]/sz);
    query(v[l].y, x[v[l].y]/sz-1, y[v[l].y]/sz-1);
    query(v[l].y, x[v[l].y]/sz, y[v[l].y]/sz+1);
    query(v[l].y, x[v[l].y]/sz, y[v[l].y]/sz);
    query(v[l].y, x[v[l].y]/sz, y[v[l].y]/sz-1);
    query(v[l].y, x[v[l].y]/sz+1, y[v[l].y]/sz+1);
    query(v[l].y, x[v[l].y]/sz+1, y[v[l].y]/sz);
    query(v[l].y, x[v[l].y]/sz+1, y[v[l].y]/sz-1);
  }
  fox(l, n){
    printf("%i ", u[l]);
  }
  return 0;
}
/*
11
9 9 2
13 2 1
11 8 2
3 3 2
3 12 1
12 14 1
9 8 5
2 8 2
5 2 1
14 4 2
14 14 1
*/

Compilation message

circle_selection.cpp: In function 'void construct()':
circle_selection.cpp:23:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
circle_selection.cpp:51:7:
   fox(l, w.size()){
       ~~~~~~~~~~~                 
circle_selection.cpp:51:3: note: in expansion of macro 'fox'
   fox(l, w.size()){
   ^~~
circle_selection.cpp:41:13: warning: unused variable 'R' [-Wunused-variable]
   int X, Y, R, I;
             ^
circle_selection.cpp: In function 'void query(int, int, int)':
circle_selection.cpp:65:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (I == co.size() || co[I].x != Cx) return;
       ~~^~~~~~~~~~~~
circle_selection.cpp:69:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (I2 == co[I].y.size() || co[I].y[I2].x != Cy) return;
       ~~~^~~~~~~~~~~~~~~~~
circle_selection.cpp:23:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
circle_selection.cpp:72:7:
   fox(l, tmp.size()){
       ~~~~~~~~~~~~~               
circle_selection.cpp:72:3: note: in expansion of macro 'fox'
   fox(l, tmp.size()){
   ^~~
circle_selection.cpp: In function 'int32_t main()':
circle_selection.cpp:23:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
circle_selection.cpp:95:7:
   fox(l, v.size()){
       ~~~~~~~~~~~                 
circle_selection.cpp:95:3: note: in expansion of macro 'fox'
   fox(l, v.size()){
   ^~~
circle_selection.cpp:82:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%i", &n);
   ~~~~~^~~~~~~~~~
circle_selection.cpp:87:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i %i %i", &x[l], &y[l], &r[l]);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 6 ms 640 KB Output is correct
20 Correct 7 ms 640 KB Output is correct
21 Correct 6 ms 640 KB Output is correct
22 Correct 27 ms 1008 KB Output is correct
23 Correct 23 ms 916 KB Output is correct
24 Correct 24 ms 1152 KB Output is correct
25 Correct 31 ms 1304 KB Output is correct
26 Correct 24 ms 1152 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 277 ms 16212 KB Output is correct
2 Correct 270 ms 16360 KB Output is correct
3 Correct 269 ms 15940 KB Output is correct
4 Correct 229 ms 16340 KB Output is correct
5 Correct 884 ms 16240 KB Output is correct
6 Correct 1219 ms 22776 KB Output is correct
7 Correct 934 ms 16012 KB Output is correct
8 Correct 981 ms 16620 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 502 ms 11276 KB Output is correct
3 Correct 1598 ms 35516 KB Output is correct
4 Correct 1776 ms 35456 KB Output is correct
5 Correct 1395 ms 27248 KB Output is correct
6 Correct 607 ms 13748 KB Output is correct
7 Correct 301 ms 7304 KB Output is correct
8 Correct 65 ms 2328 KB Output is correct
9 Correct 1651 ms 32620 KB Output is correct
10 Correct 1287 ms 25680 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1928 ms 36996 KB Output is correct
2 Correct 2811 ms 49068 KB Output is correct
3 Correct 599 ms 15868 KB Output is correct
4 Correct 1994 ms 43720 KB Output is correct
5 Correct 2089 ms 49392 KB Output is correct
6 Correct 518 ms 15468 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 6 ms 640 KB Output is correct
20 Correct 7 ms 640 KB Output is correct
21 Correct 6 ms 640 KB Output is correct
22 Correct 27 ms 1008 KB Output is correct
23 Correct 23 ms 916 KB Output is correct
24 Correct 24 ms 1152 KB Output is correct
25 Correct 31 ms 1304 KB Output is correct
26 Correct 24 ms 1152 KB Output is correct
27 Correct 14 ms 1024 KB Output is correct
28 Correct 11 ms 1024 KB Output is correct
29 Correct 10 ms 1024 KB Output is correct
30 Correct 48 ms 1664 KB Output is correct
31 Correct 58 ms 1684 KB Output is correct
32 Correct 51 ms 1912 KB Output is correct
33 Correct 83 ms 5564 KB Output is correct
34 Correct 86 ms 5384 KB Output is correct
35 Correct 113 ms 5440 KB Output is correct
36 Correct 623 ms 12304 KB Output is correct
37 Correct 628 ms 12292 KB Output is correct
38 Correct 595 ms 12008 KB Output is correct
39 Correct 445 ms 7048 KB Output is correct
40 Correct 443 ms 7048 KB Output is correct
41 Correct 414 ms 7044 KB Output is correct
42 Correct 289 ms 6280 KB Output is correct
43 Correct 618 ms 14540 KB Output is correct
44 Correct 543 ms 14420 KB Output is correct
45 Correct 543 ms 14328 KB Output is correct
46 Correct 590 ms 14436 KB Output is correct
47 Correct 571 ms 14464 KB Output is correct
48 Correct 587 ms 14612 KB Output is correct
49 Correct 574 ms 14428 KB Output is correct
50 Correct 525 ms 14460 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 3 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 6 ms 640 KB Output is correct
20 Correct 7 ms 640 KB Output is correct
21 Correct 6 ms 640 KB Output is correct
22 Correct 27 ms 1008 KB Output is correct
23 Correct 23 ms 916 KB Output is correct
24 Correct 24 ms 1152 KB Output is correct
25 Correct 31 ms 1304 KB Output is correct
26 Correct 24 ms 1152 KB Output is correct
27 Correct 277 ms 16212 KB Output is correct
28 Correct 270 ms 16360 KB Output is correct
29 Correct 269 ms 15940 KB Output is correct
30 Correct 229 ms 16340 KB Output is correct
31 Correct 884 ms 16240 KB Output is correct
32 Correct 1219 ms 22776 KB Output is correct
33 Correct 934 ms 16012 KB Output is correct
34 Correct 981 ms 16620 KB Output is correct
35 Correct 2 ms 384 KB Output is correct
36 Correct 502 ms 11276 KB Output is correct
37 Correct 1598 ms 35516 KB Output is correct
38 Correct 1776 ms 35456 KB Output is correct
39 Correct 1395 ms 27248 KB Output is correct
40 Correct 607 ms 13748 KB Output is correct
41 Correct 301 ms 7304 KB Output is correct
42 Correct 65 ms 2328 KB Output is correct
43 Correct 1651 ms 32620 KB Output is correct
44 Correct 1287 ms 25680 KB Output is correct
45 Correct 1928 ms 36996 KB Output is correct
46 Correct 2811 ms 49068 KB Output is correct
47 Correct 599 ms 15868 KB Output is correct
48 Correct 1994 ms 43720 KB Output is correct
49 Correct 2089 ms 49392 KB Output is correct
50 Correct 518 ms 15468 KB Output is correct
51 Correct 14 ms 1024 KB Output is correct
52 Correct 11 ms 1024 KB Output is correct
53 Correct 10 ms 1024 KB Output is correct
54 Correct 48 ms 1664 KB Output is correct
55 Correct 58 ms 1684 KB Output is correct
56 Correct 51 ms 1912 KB Output is correct
57 Correct 83 ms 5564 KB Output is correct
58 Correct 86 ms 5384 KB Output is correct
59 Correct 113 ms 5440 KB Output is correct
60 Correct 623 ms 12304 KB Output is correct
61 Correct 628 ms 12292 KB Output is correct
62 Correct 595 ms 12008 KB Output is correct
63 Correct 445 ms 7048 KB Output is correct
64 Correct 443 ms 7048 KB Output is correct
65 Correct 414 ms 7044 KB Output is correct
66 Correct 289 ms 6280 KB Output is correct
67 Correct 618 ms 14540 KB Output is correct
68 Correct 543 ms 14420 KB Output is correct
69 Correct 543 ms 14328 KB Output is correct
70 Correct 590 ms 14436 KB Output is correct
71 Correct 571 ms 14464 KB Output is correct
72 Correct 587 ms 14612 KB Output is correct
73 Correct 574 ms 14428 KB Output is correct
74 Correct 525 ms 14460 KB Output is correct
75 Correct 253 ms 15964 KB Output is correct
76 Correct 330 ms 16280 KB Output is correct
77 Correct 299 ms 16236 KB Output is correct
78 Correct 276 ms 15976 KB Output is correct
79 Correct 404 ms 16200 KB Output is correct
80 Correct 258 ms 16052 KB Output is correct
81 Correct 1903 ms 35584 KB Output is correct
82 Correct 1703 ms 35244 KB Output is correct
83 Correct 1710 ms 39528 KB Output is correct
84 Correct 1788 ms 34880 KB Output is correct
85 Correct 1968 ms 35908 KB Output is correct
86 Correct 1680 ms 38896 KB Output is correct
87 Correct 1766 ms 32520 KB Output is correct
88 Correct 1431 ms 20840 KB Output is correct
89 Correct 1589 ms 20472 KB Output is correct
90 Correct 1349 ms 20712 KB Output is correct
91 Correct 1373 ms 20720 KB Output is correct
92 Correct 1429 ms 20600 KB Output is correct
93 Correct 1841 ms 48380 KB Output is correct
94 Correct 1964 ms 35700 KB Output is correct
95 Correct 2047 ms 48252 KB Output is correct
96 Correct 1856 ms 43788 KB Output is correct
97 Correct 2100 ms 33808 KB Output is correct
98 Correct 1266 ms 19880 KB Output is correct
99 Correct 2116 ms 46664 KB Output is correct
100 Correct 2448 ms 47584 KB Output is correct
101 Correct 1696 ms 23616 KB Output is correct
102 Correct 1961 ms 47484 KB Output is correct
103 Correct 1860 ms 29676 KB Output is correct
104 Correct 2035 ms 47432 KB Output is correct
105 Correct 996 ms 16876 KB Output is correct
106 Correct 1681 ms 34412 KB Output is correct
107 Correct 1554 ms 34356 KB Output is correct
108 Correct 1622 ms 34424 KB Output is correct
109 Correct 1634 ms 34188 KB Output is correct
110 Correct 1733 ms 34232 KB Output is correct
111 Correct 1576 ms 34316 KB Output is correct
112 Correct 1763 ms 34160 KB Output is correct
113 Correct 1707 ms 34156 KB Output is correct
114 Correct 1683 ms 34392 KB Output is correct
115 Correct 1514 ms 34416 KB Output is correct
116 Correct 1514 ms 38232 KB Output is correct