oj.uz

Submission #556235

# Submission time Handle Problem Language Result Execution time Memory
556235 2022-05-02T15:38:27 Z 600Mihnea Team Contest (JOI22_team) C++17
73 / 100
 2000 ms 129856 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++) {
        int best=-INF;
        int y=a[i].ty,z=a[i].tz;
        print=max(print,get(n-y,n-z)+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:121:13: warning: unused variable 'best' [-Wunused-variable]
  121 |         int best=-INF;
      |             ^~~~
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 4 ms 7400 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 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 3 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 3 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7508 KB Output is correct
15 Correct 4 ms 7440 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7424 KB Output is correct
18 Correct 6 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 6 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 5 ms 7380 KB Output is correct
23 Correct 4 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 4 ms 7400 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 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 3 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 3 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7508 KB Output is correct
15 Correct 4 ms 7440 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7424 KB Output is correct
18 Correct 6 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 6 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 5 ms 7380 KB Output is correct
23 Correct 4 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 9944 KB Output is correct
27 Correct 18 ms 8324 KB Output is correct
28 Correct 18 ms 8404 KB Output is correct
29 Correct 12 ms 8020 KB Output is correct
30 Correct 13 ms 7892 KB Output is correct
31 Correct 17 ms 8020 KB Output is correct
32 Correct 11 ms 7764 KB Output is correct
33 Correct 11 ms 7636 KB Output is correct
34 Correct 12 ms 8108 KB Output is correct
35 Correct 7 ms 7380 KB Output is correct
36 Correct 5 ms 7380 KB Output is correct
37 Correct 7 ms 7636 KB Output is correct
38 Correct 7 ms 7636 KB Output is correct
39 Correct 6 ms 7380 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 3 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 3 ms 7380 KB Output is correct
7 Correct 3 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 168 ms 13796 KB Output is correct
12 Correct 94 ms 11688 KB Output is correct
13 Correct 125 ms 12188 KB Output is correct
14 Correct 138 ms 13664 KB Output is correct
15 Correct 127 ms 13672 KB Output is correct
16 Correct 133 ms 13336 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 3 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 3 ms 7380 KB Output is correct
7 Correct 3 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 168 ms 13796 KB Output is correct
12 Correct 94 ms 11688 KB Output is correct
13 Correct 125 ms 12188 KB Output is correct
14 Correct 138 ms 13664 KB Output is correct
15 Correct 127 ms 13672 KB Output is correct
16 Correct 133 ms 13336 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 5 ms 7416 KB Output is correct
22 Correct 198 ms 13704 KB Output is correct
23 Correct 191 ms 13644 KB Output is correct
24 Correct 127 ms 11968 KB Output is correct
25 Correct 133 ms 13720 KB Output is correct
26 Correct 114 ms 13608 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 3 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 3 ms 7380 KB Output is correct
7 Correct 3 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 168 ms 13796 KB Output is correct
12 Correct 94 ms 11688 KB Output is correct
13 Correct 125 ms 12188 KB Output is correct
14 Correct 138 ms 13664 KB Output is correct
15 Correct 127 ms 13672 KB Output is correct
16 Correct 133 ms 13336 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 5 ms 7416 KB Output is correct
22 Correct 198 ms 13704 KB Output is correct
23 Correct 191 ms 13644 KB Output is correct
24 Correct 127 ms 11968 KB Output is correct
25 Correct 133 ms 13720 KB Output is correct
26 Correct 114 ms 13608 KB Output is correct
27 Correct 5 ms 7380 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7392 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 13 ms 7756 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 5 ms 7412 KB Output is correct
34 Correct 365 ms 13628 KB Output is correct
35 Correct 279 ms 13960 KB Output is correct
36 Correct 304 ms 14644 KB Output is correct
37 Correct 246 ms 14540 KB Output is correct
38 Correct 149 ms 13496 KB Output is correct
39 Correct 136 ms 11732 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 3 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 3 ms 7380 KB Output is correct
6 Correct 3 ms 7380 KB Output is correct
7 Correct 3 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 168 ms 13796 KB Output is correct
12 Correct 94 ms 11688 KB Output is correct
13 Correct 125 ms 12188 KB Output is correct
14 Correct 138 ms 13664 KB Output is correct
15 Correct 127 ms 13672 KB Output is correct
16 Correct 133 ms 13336 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 5 ms 7416 KB Output is correct
22 Correct 198 ms 13704 KB Output is correct
23 Correct 191 ms 13644 KB Output is correct
24 Correct 127 ms 11968 KB Output is correct
25 Correct 133 ms 13720 KB Output is correct
26 Correct 114 ms 13608 KB Output is correct
27 Correct 5 ms 7380 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7392 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 13 ms 7756 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 5 ms 7412 KB Output is correct
34 Correct 365 ms 13628 KB Output is correct
35 Correct 279 ms 13960 KB Output is correct
36 Correct 304 ms 14644 KB Output is correct
37 Correct 246 ms 14540 KB Output is correct
38 Correct 149 ms 13496 KB Output is correct
39 Correct 136 ms 11732 KB Output is correct
40 Correct 11 ms 7892 KB Output is correct
41 Correct 17 ms 8040 KB Output is correct
42 Correct 7 ms 7656 KB Output is correct
43 Correct 8 ms 7636 KB Output is correct
44 Correct 639 ms 15720 KB Output is correct
45 Correct 664 ms 25476 KB Output is correct
46 Correct 639 ms 23296 KB Output is correct
47 Correct 709 ms 25912 KB Output is correct
48 Correct 168 ms 14064 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 4 ms 7400 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 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 3 ms 7380 KB Output is correct
10 Correct 3 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 3 ms 7380 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 5 ms 7508 KB Output is correct
15 Correct 4 ms 7440 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7424 KB Output is correct
18 Correct 6 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 6 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 5 ms 7380 KB Output is correct
23 Correct 4 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 9944 KB Output is correct
27 Correct 18 ms 8324 KB Output is correct
28 Correct 18 ms 8404 KB Output is correct
29 Correct 12 ms 8020 KB Output is correct
30 Correct 13 ms 7892 KB Output is correct
31 Correct 17 ms 8020 KB Output is correct
32 Correct 11 ms 7764 KB Output is correct
33 Correct 11 ms 7636 KB Output is correct
34 Correct 12 ms 8108 KB Output is correct
35 Correct 7 ms 7380 KB Output is correct
36 Correct 5 ms 7380 KB Output is correct
37 Correct 7 ms 7636 KB Output is correct
38 Correct 7 ms 7636 KB Output is correct
39 Correct 6 ms 7380 KB Output is correct
40 Correct 3 ms 7380 KB Output is correct
41 Correct 4 ms 7380 KB Output is correct
42 Correct 3 ms 7380 KB Output is correct
43 Correct 4 ms 7380 KB Output is correct
44 Correct 3 ms 7380 KB Output is correct
45 Correct 3 ms 7380 KB Output is correct
46 Correct 3 ms 7380 KB Output is correct
47 Correct 4 ms 7380 KB Output is correct
48 Correct 5 ms 7380 KB Output is correct
49 Correct 3 ms 7380 KB Output is correct
50 Correct 168 ms 13796 KB Output is correct
51 Correct 94 ms 11688 KB Output is correct
52 Correct 125 ms 12188 KB Output is correct
53 Correct 138 ms 13664 KB Output is correct
54 Correct 127 ms 13672 KB Output is correct
55 Correct 133 ms 13336 KB Output is correct
56 Correct 4 ms 7380 KB Output is correct
57 Correct 4 ms 7380 KB Output is correct
58 Correct 4 ms 7380 KB Output is correct
59 Correct 4 ms 7380 KB Output is correct
60 Correct 5 ms 7416 KB Output is correct
61 Correct 198 ms 13704 KB Output is correct
62 Correct 191 ms 13644 KB Output is correct
63 Correct 127 ms 11968 KB Output is correct
64 Correct 133 ms 13720 KB Output is correct
65 Correct 114 ms 13608 KB Output is correct
66 Correct 5 ms 7380 KB Output is correct
67 Correct 4 ms 7380 KB Output is correct
68 Correct 4 ms 7392 KB Output is correct
69 Correct 4 ms 7380 KB Output is correct
70 Correct 13 ms 7756 KB Output is correct
71 Correct 5 ms 7380 KB Output is correct
72 Correct 5 ms 7412 KB Output is correct
73 Correct 365 ms 13628 KB Output is correct
74 Correct 279 ms 13960 KB Output is correct
75 Correct 304 ms 14644 KB Output is correct
76 Correct 246 ms 14540 KB Output is correct
77 Correct 149 ms 13496 KB Output is correct
78 Correct 136 ms 11732 KB Output is correct
79 Correct 11 ms 7892 KB Output is correct
80 Correct 17 ms 8040 KB Output is correct
81 Correct 7 ms 7656 KB Output is correct
82 Correct 8 ms 7636 KB Output is correct
83 Correct 639 ms 15720 KB Output is correct
84 Correct 664 ms 25476 KB Output is correct
85 Correct 639 ms 23296 KB Output is correct
86 Correct 709 ms 25912 KB Output is correct
87 Correct 168 ms 14064 KB Output is correct
88 Execution timed out 2094 ms 129856 KB Time limit exceeded
89 Halted 0 ms 0 KB -