oj.uz

Submission #556238

# Submission time Handle Problem Language Result Execution time Memory
556238 2022-05-02T15:42:29 Z 600Mihnea Team Contest (JOI22_team) C++17
73 / 100
 2000 ms 127860 KB 
#include <bits/stdc++.h>

bool home = 1;

using namespace std;

struct T {
  int x;
  int y;
  int z;
  int tx;
  int ty;
  int tz;
};

bool cmp_x_inv(T a,T b) {
  return a.x>b.x;
}

typedef long long ll;
const int N=150000+7;
const int INF=(int)1e9+7;
int n,zm[N],invy[N],invz[N],value[N];
T a[N];
int aib1[N];

void clr1() {
  for (int i=1;i<=n;i++) aib1[i]=-INF;
}

int get1(int i) {
  int sol=-INF;
  while (i) {
    sol=max(sol,aib1[i]);
    i-=i&(-i);
  }
  return sol;
}

void upd1(int i,int x) {
  while (i<=n){
    aib1[i]=max(aib1[i],x);
    i+=i&(-i);
  }
}

unordered_map<int, int> aib[N];

void clr() {
  for (int i=1;i<=n;i++) aib[i].clear();
}

void upd(int x,int y,int val) {
  for (int i=x;i<=n;i+=i&(-i)) {
    for (int j=y;j<=n;j+=j&(-j)) {
      aib[i][j]=max(aib[i][j],val);
    }
  }
}

int get(int x,int y) {
  int sol=-INF;
  for (int i=x;i>=1;i-=i&(-i)) {
    for (int j=y;j>=1;j-=j&(-j)) {
      if (aib[i].count(j)) {
        sol=max(sol,aib[i][j]);
      }
    }
  }
  return sol;
}

signed main() {
#ifdef ONLINE_JUDGE
  home = 0;
#endif

  home=0;

  if (home) {
    freopen("I_am_iron_man", "r", stdin);
  }
  else {
    ios::sync_with_stdio(0); cin.tie(0);
  }

  cin>>n;
  for (int i=1;i<=n;i++) {
    cin>>a[i].x>>a[i].y>>a[i].z;
  }
  sort(a+1,a+n+1,cmp_x_inv);
  {
    map<int, int> tx,ty,tz;
    for (int i=1;i<=n;i++) tx[a[i].x]=0,ty[a[i].y]=0,tz[a[i].z]=0;
    int ind;
    ind=0; for (auto &it:tx)it.second=++ind;
    ind=0; for (auto &it:ty)it.second=++ind, invy[ind]=it.first;
    ind=0; for (auto &it:tz)it.second=++ind, invz[ind]=it.first;
    for (int i=1;i<=n;i++) a[i].tx=tx[a[i].x], a[i].ty=ty[a[i].y], a[i].tz=tz[a[i].z];
  }
  int print=-1;

  for (int ITER=0;ITER<2;ITER++) {
    clr1();
    clr();

    for (int i=n;i>=1;i--) { /// optimize using aib
      zm[i]=get1(a[i].ty-1);
      upd1(a[i].ty,a[i].tz);
      if (zm[i]<=a[i].tz) zm[i]=-INF;

      if (1<=zm[i]&&zm[i]<=n) value[i]=invz[zm[i]]+a[i].y; else assert(zm[i]==-INF);
    }

    int last=n;
    while(last>=1){
      int first=last;
      while(first-1>=1&&a[first-1].x==a[first].x) first--;

      for (int i=first;i<=last;i++) {
        print=max(print,get(n-a[i].ty,n-a[i].tz)+a[i].x);
      }

      for (int i=first;i<=last;i++) {
        if (zm[i]!=-INF) {
          upd(n+1-a[i].ty,n+1-zm[i],value[i]);
        }
      }
      last=first-1;
    }
    for (int i=1;i<=n;i++) swap(a[i].y,a[i].z), swap(a[i].ty,a[i].tz), swap(invz[i],invy[i]);
  }

  cout<<print<<"\n";
}

Compilation message

team.cpp: In function 'int main()':
team.cpp:81:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |     freopen("I_am_iron_man", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8576 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 6 ms 8532 KB Output is correct
5 Correct 6 ms 8532 KB Output is correct
6 Correct 6 ms 8556 KB Output is correct
7 Correct 5 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 6 ms 8572 KB Output is correct
11 Correct 4 ms 8568 KB Output is correct
12 Correct 4 ms 8532 KB Output is correct
13 Correct 5 ms 8532 KB Output is correct
14 Correct 6 ms 8688 KB Output is correct
15 Correct 5 ms 8532 KB Output is correct
16 Correct 5 ms 8660 KB Output is correct
17 Correct 5 ms 8604 KB Output is correct
18 Correct 5 ms 8660 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 5 ms 8660 KB Output is correct
22 Correct 6 ms 8532 KB Output is correct
23 Correct 5 ms 8532 KB Output is correct
24 Correct 7 ms 8532 KB Output is correct
25 Correct 6 ms 8532 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8576 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 6 ms 8532 KB Output is correct
5 Correct 6 ms 8532 KB Output is correct
6 Correct 6 ms 8556 KB Output is correct
7 Correct 5 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 6 ms 8572 KB Output is correct
11 Correct 4 ms 8568 KB Output is correct
12 Correct 4 ms 8532 KB Output is correct
13 Correct 5 ms 8532 KB Output is correct
14 Correct 6 ms 8688 KB Output is correct
15 Correct 5 ms 8532 KB Output is correct
16 Correct 5 ms 8660 KB Output is correct
17 Correct 5 ms 8604 KB Output is correct
18 Correct 5 ms 8660 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 5 ms 8660 KB Output is correct
22 Correct 6 ms 8532 KB Output is correct
23 Correct 5 ms 8532 KB Output is correct
24 Correct 7 ms 8532 KB Output is correct
25 Correct 6 ms 8532 KB Output is correct
26 Correct 43 ms 10940 KB Output is correct
27 Correct 22 ms 9480 KB Output is correct
28 Correct 21 ms 9504 KB Output is correct
29 Correct 14 ms 9300 KB Output is correct
30 Correct 13 ms 9188 KB Output is correct
31 Correct 21 ms 9168 KB Output is correct
32 Correct 13 ms 8944 KB Output is correct
33 Correct 11 ms 8788 KB Output is correct
34 Correct 11 ms 9172 KB Output is correct
35 Correct 6 ms 8660 KB Output is correct
36 Correct 8 ms 8664 KB Output is correct
37 Correct 10 ms 8900 KB Output is correct
38 Correct 10 ms 8916 KB Output is correct
39 Correct 9 ms 8660 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8532 KB Output is correct
2 Correct 5 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8576 KB Output is correct
6 Correct 5 ms 8532 KB Output is correct
7 Correct 4 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 5 ms 8532 KB Output is correct
11 Correct 356 ms 14984 KB Output is correct
12 Correct 156 ms 12900 KB Output is correct
13 Correct 285 ms 13428 KB Output is correct
14 Correct 288 ms 14836 KB Output is correct
15 Correct 284 ms 14840 KB Output is correct
16 Correct 341 ms 14508 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8532 KB Output is correct
2 Correct 5 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8576 KB Output is correct
6 Correct 5 ms 8532 KB Output is correct
7 Correct 4 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 5 ms 8532 KB Output is correct
11 Correct 356 ms 14984 KB Output is correct
12 Correct 156 ms 12900 KB Output is correct
13 Correct 285 ms 13428 KB Output is correct
14 Correct 288 ms 14836 KB Output is correct
15 Correct 284 ms 14840 KB Output is correct
16 Correct 341 ms 14508 KB Output is correct
17 Correct 5 ms 8532 KB Output is correct
18 Correct 5 ms 8544 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 8 ms 8660 KB Output is correct
22 Correct 363 ms 14896 KB Output is correct
23 Correct 343 ms 14864 KB Output is correct
24 Correct 158 ms 13148 KB Output is correct
25 Correct 204 ms 14896 KB Output is correct
26 Correct 235 ms 14752 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8532 KB Output is correct
2 Correct 5 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8576 KB Output is correct
6 Correct 5 ms 8532 KB Output is correct
7 Correct 4 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 5 ms 8532 KB Output is correct
11 Correct 356 ms 14984 KB Output is correct
12 Correct 156 ms 12900 KB Output is correct
13 Correct 285 ms 13428 KB Output is correct
14 Correct 288 ms 14836 KB Output is correct
15 Correct 284 ms 14840 KB Output is correct
16 Correct 341 ms 14508 KB Output is correct
17 Correct 5 ms 8532 KB Output is correct
18 Correct 5 ms 8544 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 8 ms 8660 KB Output is correct
22 Correct 363 ms 14896 KB Output is correct
23 Correct 343 ms 14864 KB Output is correct
24 Correct 158 ms 13148 KB Output is correct
25 Correct 204 ms 14896 KB Output is correct
26 Correct 235 ms 14752 KB Output is correct
27 Correct 5 ms 8532 KB Output is correct
28 Correct 6 ms 8532 KB Output is correct
29 Correct 5 ms 8532 KB Output is correct
30 Correct 5 ms 8532 KB Output is correct
31 Correct 14 ms 8948 KB Output is correct
32 Correct 5 ms 8660 KB Output is correct
33 Correct 6 ms 8660 KB Output is correct
34 Correct 522 ms 14808 KB Output is correct
35 Correct 327 ms 15052 KB Output is correct
36 Correct 366 ms 15712 KB Output is correct
37 Correct 310 ms 15616 KB Output is correct
38 Correct 270 ms 14744 KB Output is correct
39 Correct 277 ms 12824 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8532 KB Output is correct
2 Correct 5 ms 8532 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 5 ms 8532 KB Output is correct
5 Correct 5 ms 8576 KB Output is correct
6 Correct 5 ms 8532 KB Output is correct
7 Correct 4 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 5 ms 8532 KB Output is correct
11 Correct 356 ms 14984 KB Output is correct
12 Correct 156 ms 12900 KB Output is correct
13 Correct 285 ms 13428 KB Output is correct
14 Correct 288 ms 14836 KB Output is correct
15 Correct 284 ms 14840 KB Output is correct
16 Correct 341 ms 14508 KB Output is correct
17 Correct 5 ms 8532 KB Output is correct
18 Correct 5 ms 8544 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 8 ms 8660 KB Output is correct
22 Correct 363 ms 14896 KB Output is correct
23 Correct 343 ms 14864 KB Output is correct
24 Correct 158 ms 13148 KB Output is correct
25 Correct 204 ms 14896 KB Output is correct
26 Correct 235 ms 14752 KB Output is correct
27 Correct 5 ms 8532 KB Output is correct
28 Correct 6 ms 8532 KB Output is correct
29 Correct 5 ms 8532 KB Output is correct
30 Correct 5 ms 8532 KB Output is correct
31 Correct 14 ms 8948 KB Output is correct
32 Correct 5 ms 8660 KB Output is correct
33 Correct 6 ms 8660 KB Output is correct
34 Correct 522 ms 14808 KB Output is correct
35 Correct 327 ms 15052 KB Output is correct
36 Correct 366 ms 15712 KB Output is correct
37 Correct 310 ms 15616 KB Output is correct
38 Correct 270 ms 14744 KB Output is correct
39 Correct 277 ms 12824 KB Output is correct
40 Correct 13 ms 9172 KB Output is correct
41 Correct 20 ms 9156 KB Output is correct
42 Correct 9 ms 8916 KB Output is correct
43 Correct 9 ms 8916 KB Output is correct
44 Correct 878 ms 17104 KB Output is correct
45 Correct 564 ms 25720 KB Output is correct
46 Correct 575 ms 23944 KB Output is correct
47 Correct 559 ms 26388 KB Output is correct
48 Correct 299 ms 15128 KB Output is correct

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8532 KB Output is correct
2 Correct 4 ms 8576 KB Output is correct
3 Correct 5 ms 8532 KB Output is correct
4 Correct 6 ms 8532 KB Output is correct
5 Correct 6 ms 8532 KB Output is correct
6 Correct 6 ms 8556 KB Output is correct
7 Correct 5 ms 8532 KB Output is correct
8 Correct 5 ms 8532 KB Output is correct
9 Correct 5 ms 8532 KB Output is correct
10 Correct 6 ms 8572 KB Output is correct
11 Correct 4 ms 8568 KB Output is correct
12 Correct 4 ms 8532 KB Output is correct
13 Correct 5 ms 8532 KB Output is correct
14 Correct 6 ms 8688 KB Output is correct
15 Correct 5 ms 8532 KB Output is correct
16 Correct 5 ms 8660 KB Output is correct
17 Correct 5 ms 8604 KB Output is correct
18 Correct 5 ms 8660 KB Output is correct
19 Correct 5 ms 8532 KB Output is correct
20 Correct 5 ms 8532 KB Output is correct
21 Correct 5 ms 8660 KB Output is correct
22 Correct 6 ms 8532 KB Output is correct
23 Correct 5 ms 8532 KB Output is correct
24 Correct 7 ms 8532 KB Output is correct
25 Correct 6 ms 8532 KB Output is correct
26 Correct 43 ms 10940 KB Output is correct
27 Correct 22 ms 9480 KB Output is correct
28 Correct 21 ms 9504 KB Output is correct
29 Correct 14 ms 9300 KB Output is correct
30 Correct 13 ms 9188 KB Output is correct
31 Correct 21 ms 9168 KB Output is correct
32 Correct 13 ms 8944 KB Output is correct
33 Correct 11 ms 8788 KB Output is correct
34 Correct 11 ms 9172 KB Output is correct
35 Correct 6 ms 8660 KB Output is correct
36 Correct 8 ms 8664 KB Output is correct
37 Correct 10 ms 8900 KB Output is correct
38 Correct 10 ms 8916 KB Output is correct
39 Correct 9 ms 8660 KB Output is correct
40 Correct 5 ms 8532 KB Output is correct
41 Correct 5 ms 8532 KB Output is correct
42 Correct 5 ms 8532 KB Output is correct
43 Correct 5 ms 8532 KB Output is correct
44 Correct 5 ms 8576 KB Output is correct
45 Correct 5 ms 8532 KB Output is correct
46 Correct 4 ms 8532 KB Output is correct
47 Correct 5 ms 8532 KB Output is correct
48 Correct 5 ms 8532 KB Output is correct
49 Correct 5 ms 8532 KB Output is correct
50 Correct 356 ms 14984 KB Output is correct
51 Correct 156 ms 12900 KB Output is correct
52 Correct 285 ms 13428 KB Output is correct
53 Correct 288 ms 14836 KB Output is correct
54 Correct 284 ms 14840 KB Output is correct
55 Correct 341 ms 14508 KB Output is correct
56 Correct 5 ms 8532 KB Output is correct
57 Correct 5 ms 8544 KB Output is correct
58 Correct 5 ms 8532 KB Output is correct
59 Correct 5 ms 8532 KB Output is correct
60 Correct 8 ms 8660 KB Output is correct
61 Correct 363 ms 14896 KB Output is correct
62 Correct 343 ms 14864 KB Output is correct
63 Correct 158 ms 13148 KB Output is correct
64 Correct 204 ms 14896 KB Output is correct
65 Correct 235 ms 14752 KB Output is correct
66 Correct 5 ms 8532 KB Output is correct
67 Correct 6 ms 8532 KB Output is correct
68 Correct 5 ms 8532 KB Output is correct
69 Correct 5 ms 8532 KB Output is correct
70 Correct 14 ms 8948 KB Output is correct
71 Correct 5 ms 8660 KB Output is correct
72 Correct 6 ms 8660 KB Output is correct
73 Correct 522 ms 14808 KB Output is correct
74 Correct 327 ms 15052 KB Output is correct
75 Correct 366 ms 15712 KB Output is correct
76 Correct 310 ms 15616 KB Output is correct
77 Correct 270 ms 14744 KB Output is correct
78 Correct 277 ms 12824 KB Output is correct
79 Correct 13 ms 9172 KB Output is correct
80 Correct 20 ms 9156 KB Output is correct
81 Correct 9 ms 8916 KB Output is correct
82 Correct 9 ms 8916 KB Output is correct
83 Correct 878 ms 17104 KB Output is correct
84 Correct 564 ms 25720 KB Output is correct
85 Correct 575 ms 23944 KB Output is correct
86 Correct 559 ms 26388 KB Output is correct
87 Correct 299 ms 15128 KB Output is correct
88 Execution timed out 2077 ms 127860 KB Time limit exceeded
89 Halted 0 ms 0 KB -