oj.uz

Submission #556236

# Submission time Handle Problem Language Result Execution time Memory
556236 2022-05-02T15:38:48 Z 600Mihnea Team Contest (JOI22_team) C++17
73 / 100
 2000 ms 130720 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);
  }
}

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 7380 KB Output is correct
2 Correct 3 ms 7396 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7484 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 6 ms 7436 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 3 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7380 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct

Subtask #2
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 3 ms 7396 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7484 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 6 ms 7436 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 3 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7380 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct
26 Correct 36 ms 9964 KB Output is correct
27 Correct 20 ms 8312 KB Output is correct
28 Correct 18 ms 8412 KB Output is correct
29 Correct 14 ms 8008 KB Output is correct
30 Correct 12 ms 7972 KB Output is correct
31 Correct 17 ms 7968 KB Output is correct
32 Correct 10 ms 7764 KB Output is correct
33 Correct 7 ms 7652 KB Output is correct
34 Correct 10 ms 8020 KB Output is correct
35 Correct 5 ms 7488 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 8 ms 7728 KB Output is correct
38 Correct 8 ms 7692 KB Output is correct
39 Correct 7 ms 7380 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 165 ms 13816 KB Output is correct
12 Correct 81 ms 11624 KB Output is correct
13 Correct 143 ms 12248 KB Output is correct
14 Correct 138 ms 13576 KB Output is correct
15 Correct 143 ms 13772 KB Output is correct
16 Correct 121 ms 13208 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 165 ms 13816 KB Output is correct
12 Correct 81 ms 11624 KB Output is correct
13 Correct 143 ms 12248 KB Output is correct
14 Correct 138 ms 13576 KB Output is correct
15 Correct 143 ms 13772 KB Output is correct
16 Correct 121 ms 13208 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 5 ms 7340 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 8 ms 7380 KB Output is correct
22 Correct 199 ms 13704 KB Output is correct
23 Correct 183 ms 13684 KB Output is correct
24 Correct 121 ms 12020 KB Output is correct
25 Correct 145 ms 13644 KB Output is correct
26 Correct 121 ms 13568 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 165 ms 13816 KB Output is correct
12 Correct 81 ms 11624 KB Output is correct
13 Correct 143 ms 12248 KB Output is correct
14 Correct 138 ms 13576 KB Output is correct
15 Correct 143 ms 13772 KB Output is correct
16 Correct 121 ms 13208 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 5 ms 7340 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 8 ms 7380 KB Output is correct
22 Correct 199 ms 13704 KB Output is correct
23 Correct 183 ms 13684 KB Output is correct
24 Correct 121 ms 12020 KB Output is correct
25 Correct 145 ms 13644 KB Output is correct
26 Correct 121 ms 13568 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 6 ms 7380 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 12 ms 7764 KB Output is correct
32 Correct 6 ms 7380 KB Output is correct
33 Correct 5 ms 7380 KB Output is correct
34 Correct 368 ms 13516 KB Output is correct
35 Correct 252 ms 13960 KB Output is correct
36 Correct 292 ms 14668 KB Output is correct
37 Correct 264 ms 14608 KB Output is correct
38 Correct 136 ms 13476 KB Output is correct
39 Correct 143 ms 11736 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 165 ms 13816 KB Output is correct
12 Correct 81 ms 11624 KB Output is correct
13 Correct 143 ms 12248 KB Output is correct
14 Correct 138 ms 13576 KB Output is correct
15 Correct 143 ms 13772 KB Output is correct
16 Correct 121 ms 13208 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 5 ms 7340 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 8 ms 7380 KB Output is correct
22 Correct 199 ms 13704 KB Output is correct
23 Correct 183 ms 13684 KB Output is correct
24 Correct 121 ms 12020 KB Output is correct
25 Correct 145 ms 13644 KB Output is correct
26 Correct 121 ms 13568 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 6 ms 7380 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 12 ms 7764 KB Output is correct
32 Correct 6 ms 7380 KB Output is correct
33 Correct 5 ms 7380 KB Output is correct
34 Correct 368 ms 13516 KB Output is correct
35 Correct 252 ms 13960 KB Output is correct
36 Correct 292 ms 14668 KB Output is correct
37 Correct 264 ms 14608 KB Output is correct
38 Correct 136 ms 13476 KB Output is correct
39 Correct 143 ms 11736 KB Output is correct
40 Correct 11 ms 7952 KB Output is correct
41 Correct 19 ms 7984 KB Output is correct
42 Correct 7 ms 7632 KB Output is correct
43 Correct 8 ms 7636 KB Output is correct
44 Correct 667 ms 15772 KB Output is correct
45 Correct 660 ms 25588 KB Output is correct
46 Correct 608 ms 23304 KB Output is correct
47 Correct 703 ms 25936 KB Output is correct
48 Correct 217 ms 13900 KB Output is correct

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 3 ms 7396 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7484 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 6 ms 7436 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 3 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7380 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct
26 Correct 36 ms 9964 KB Output is correct
27 Correct 20 ms 8312 KB Output is correct
28 Correct 18 ms 8412 KB Output is correct
29 Correct 14 ms 8008 KB Output is correct
30 Correct 12 ms 7972 KB Output is correct
31 Correct 17 ms 7968 KB Output is correct
32 Correct 10 ms 7764 KB Output is correct
33 Correct 7 ms 7652 KB Output is correct
34 Correct 10 ms 8020 KB Output is correct
35 Correct 5 ms 7488 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 8 ms 7728 KB Output is correct
38 Correct 8 ms 7692 KB Output is correct
39 Correct 7 ms 7380 KB Output is correct
40 Correct 4 ms 7380 KB Output is correct
41 Correct 4 ms 7380 KB Output is correct
42 Correct 4 ms 7380 KB Output is correct
43 Correct 4 ms 7380 KB Output is correct
44 Correct 4 ms 7380 KB Output is correct
45 Correct 4 ms 7380 KB Output is correct
46 Correct 4 ms 7380 KB Output is correct
47 Correct 4 ms 7380 KB Output is correct
48 Correct 4 ms 7380 KB Output is correct
49 Correct 4 ms 7380 KB Output is correct
50 Correct 165 ms 13816 KB Output is correct
51 Correct 81 ms 11624 KB Output is correct
52 Correct 143 ms 12248 KB Output is correct
53 Correct 138 ms 13576 KB Output is correct
54 Correct 143 ms 13772 KB Output is correct
55 Correct 121 ms 13208 KB Output is correct
56 Correct 4 ms 7380 KB Output is correct
57 Correct 5 ms 7380 KB Output is correct
58 Correct 5 ms 7340 KB Output is correct
59 Correct 4 ms 7380 KB Output is correct
60 Correct 8 ms 7380 KB Output is correct
61 Correct 199 ms 13704 KB Output is correct
62 Correct 183 ms 13684 KB Output is correct
63 Correct 121 ms 12020 KB Output is correct
64 Correct 145 ms 13644 KB Output is correct
65 Correct 121 ms 13568 KB Output is correct
66 Correct 4 ms 7380 KB Output is correct
67 Correct 6 ms 7380 KB Output is correct
68 Correct 4 ms 7380 KB Output is correct
69 Correct 4 ms 7380 KB Output is correct
70 Correct 12 ms 7764 KB Output is correct
71 Correct 6 ms 7380 KB Output is correct
72 Correct 5 ms 7380 KB Output is correct
73 Correct 368 ms 13516 KB Output is correct
74 Correct 252 ms 13960 KB Output is correct
75 Correct 292 ms 14668 KB Output is correct
76 Correct 264 ms 14608 KB Output is correct
77 Correct 136 ms 13476 KB Output is correct
78 Correct 143 ms 11736 KB Output is correct
79 Correct 11 ms 7952 KB Output is correct
80 Correct 19 ms 7984 KB Output is correct
81 Correct 7 ms 7632 KB Output is correct
82 Correct 8 ms 7636 KB Output is correct
83 Correct 667 ms 15772 KB Output is correct
84 Correct 660 ms 25588 KB Output is correct
85 Correct 608 ms 23304 KB Output is correct
86 Correct 703 ms 25936 KB Output is correct
87 Correct 217 ms 13900 KB Output is correct
88 Execution timed out 2087 ms 130720 KB Time limit exceeded
89 Halted 0 ms 0 KB -