Submission #526202

# Submission time Handle Problem Language Result Execution time Memory
526202 2022-02-13T22:51:20 Z Plurm Diversity (CEOI21_diversity) C++11
64 / 100
7000 ms 17008 KB
#include <bits/stdc++.h>
using namespace std;

template <typename T>
class FenwickTree{
public:
  T* FT;
  int n;
  bool negmode;
  FenwickTree(int sz = 1 << 19, bool negindex = true){
    n = sz+505;
    FT = new T[n];
    fill(FT, FT+n, (T)0);
    negmode = negindex;
  }
  void add(int idx, T amt){
    if(negmode) idx += n/2;
    while(idx < n){
      FT[idx] += amt;
      idx += idx & -idx;
    }
  }
  T sum(int idx){
    if(negmode) idx += n/2;
    T ret = (T)0;
    while(idx > 0){
      ret += FT[idx];
      idx -= idx & -idx;
    }
    return ret;
  }
  int lower_bound(const int v){
    if(v > FT[1]) return 0;
    int cur = 1 << 18;
    int part = FT[cur];
    for(int i = 17; i >= 0; i--){
      if(part >= v){
        cur += 1 << i;
        part += FT[cur];
      }else{
        part -= FT[cur];
        cur -= 1 << i;
        part += FT[cur];
      }
    }
    if(part < v) return cur-1;
    return cur;
  }
  int upper_bound(const int v){
    return lower_bound(v+1);
  }
};

FenwickTree<int> FT1; // Ri
FenwickTree<long long> FT2; // Ri * i
int cnt[300005];
int a[300005];
// abstract deque
// fenwick indexing:
// [...] [-3] [-2] [-1] [0] [1] [2] [...]
// deque indexing:
// [...] [6] [4] [2] [1] [3] [5] [...]
// invariant:
// dq[-i] <= dq[i] for all positive i
// dq[-i] >= dq[i+1] for all positive i

int dq2fw(int idx){
  return idx/2 * (idx % 2 ? 1 : -1);
}

FenwickTree<int> dq(300000, false); // using deque indexing
long long deque_add(const int x){
  int idx = dq.upper_bound(x)+1;
  dq.add(idx, 1);
  dq.add(idx+1, -1);
  int b = dq2fw(idx);
  FT1.add(b, 1);
  FT2.add(b, b);
  return FT2.FT[1 << 19] - FT2.sum(b) - 1ll * (b-1) * (FT1.FT[1 << 19] - FT1.sum(b))
  + 1ll * (b+1) * FT1.sum(b-1) - FT2.sum(b-1) + x+1;
}
long long deque_remove(const int x){
  int idx = dq.lower_bound(x);
  dq.add(idx, -1);
  dq.add(idx+1, 1);
  int b = dq2fw(idx);
  FT1.add(b, -1);
  FT2.add(b, -b);
  return FT2.FT[1 << 19] - FT2.sum(b) - 1ll * (b-1) * (FT1.FT[1 << 19] - FT1.sum(b))
  + 1ll * (b+1) * FT1.sum(b-1) - FT2.sum(b-1) + x;
}

vector<tuple<int,int,int>> qbckt[300005]; // (L, R, Q)
long long answer[50005];
int qcnt[2048];

int main(){
	int n,q;
	scanf("%d%d",&n,&q);
	for(int i = 1; i <= n; i++){
		scanf("%d",a+i);
	}
  int SQRT = 1.2*n/sqrt(q);
  vector<pair<int,int>> rawq;
  for(int i = 0; i < q; i++){
    int l, r;
    scanf("%d%d",&l,&r);
    rawq.emplace_back(l,r);
    qcnt[l/SQRT]++;
  }
  for(int i = 0; i <= n/SQRT+2; i++){
    qbckt[i].reserve(qcnt[i]);
  }
  for(int i = 0; i < q; i++){
    int l, r;
    tie(l, r) = rawq[i];
    qbckt[l / SQRT].emplace_back(l, r, i);
  }
  int lptr = 1;
  int rptr = 0;
  long long ans = 0ll;
  for(int i = 0; i <= n/SQRT+2; i++){
    sort(qbckt[i].begin(), qbckt[i].end(), [](tuple<int,int,int> x, tuple<int,int,int> y){
      return get<1>(x) < get<1>(y);
    });
    // Below goes declaratively.
    for(auto qr : qbckt[i]){
      int l, r, qnum;
      tie(l, r, qnum) = qr;
      while(rptr < r){
        rptr++;
        ans += deque_add(cnt[a[rptr]]);
        cnt[a[rptr]]++;
      }
      while(lptr > l){
        lptr--;
        ans += deque_add(cnt[a[lptr]]);
        cnt[a[lptr]]++;
      }
      while(lptr < l){
        ans -= deque_remove(cnt[a[lptr]]);
        cnt[a[lptr]]--;
        lptr++;
      }
      while(rptr > r){
        ans -= deque_remove(cnt[a[rptr]]);
        cnt[a[rptr]]--;
        rptr--;
      }
      answer[qnum] = ans;
    }
  }
  for(int i = 0; i < q; i++){
    printf("%lld\n", answer[i]);
  }
	return 0;
}

Compilation message

diversity.cpp: In function 'int main()':
diversity.cpp:99:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   99 |  scanf("%d%d",&n,&q);
      |  ~~~~~^~~~~~~~~~~~~~
diversity.cpp:101:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  101 |   scanf("%d",a+i);
      |   ~~~~~^~~~~~~~~~
diversity.cpp:107:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  107 |     scanf("%d%d",&l,&r);
      |     ~~~~~^~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 7 ms 14668 KB Output is correct
2 Correct 7 ms 14668 KB Output is correct
3 Correct 7 ms 14668 KB Output is correct
4 Correct 6 ms 14668 KB Output is correct
5 Correct 6 ms 14668 KB Output is correct
6 Correct 6 ms 14668 KB Output is correct
7 Correct 6 ms 14668 KB Output is correct
8 Correct 7 ms 14668 KB Output is correct
9 Correct 8 ms 14668 KB Output is correct
10 Correct 6 ms 14668 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 14668 KB Output is correct
2 Correct 6 ms 14668 KB Output is correct
3 Correct 10 ms 14748 KB Output is correct
4 Correct 32 ms 15052 KB Output is correct
5 Correct 65 ms 15496 KB Output is correct
6 Correct 97 ms 15852 KB Output is correct
7 Correct 121 ms 15856 KB Output is correct
8 Correct 88 ms 15856 KB Output is correct
9 Correct 86 ms 15820 KB Output is correct
10 Correct 88 ms 15848 KB Output is correct
11 Correct 95 ms 15844 KB Output is correct
12 Correct 91 ms 15812 KB Output is correct
13 Correct 86 ms 15856 KB Output is correct
14 Correct 88 ms 15856 KB Output is correct
15 Correct 95 ms 15856 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 14668 KB Output is correct
2 Correct 6 ms 14668 KB Output is correct
3 Correct 10 ms 14748 KB Output is correct
4 Correct 32 ms 15052 KB Output is correct
5 Correct 65 ms 15496 KB Output is correct
6 Correct 97 ms 15852 KB Output is correct
7 Correct 121 ms 15856 KB Output is correct
8 Correct 88 ms 15856 KB Output is correct
9 Correct 86 ms 15820 KB Output is correct
10 Correct 88 ms 15848 KB Output is correct
11 Correct 95 ms 15844 KB Output is correct
12 Correct 91 ms 15812 KB Output is correct
13 Correct 86 ms 15856 KB Output is correct
14 Correct 88 ms 15856 KB Output is correct
15 Correct 95 ms 15856 KB Output is correct
16 Correct 6 ms 14668 KB Output is correct
17 Correct 7 ms 14620 KB Output is correct
18 Correct 10 ms 14732 KB Output is correct
19 Correct 34 ms 15004 KB Output is correct
20 Correct 69 ms 15408 KB Output is correct
21 Correct 95 ms 15856 KB Output is correct
22 Correct 89 ms 15864 KB Output is correct
23 Correct 92 ms 15820 KB Output is correct
24 Correct 89 ms 15812 KB Output is correct
25 Correct 90 ms 15812 KB Output is correct
26 Correct 94 ms 15852 KB Output is correct
27 Correct 90 ms 15872 KB Output is correct
28 Correct 92 ms 15852 KB Output is correct
29 Correct 100 ms 15832 KB Output is correct
30 Correct 91 ms 15852 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 8 ms 14668 KB Output is correct
2 Correct 6 ms 14668 KB Output is correct
3 Correct 10 ms 14748 KB Output is correct
4 Correct 32 ms 15052 KB Output is correct
5 Correct 65 ms 15496 KB Output is correct
6 Correct 97 ms 15852 KB Output is correct
7 Correct 121 ms 15856 KB Output is correct
8 Correct 88 ms 15856 KB Output is correct
9 Correct 86 ms 15820 KB Output is correct
10 Correct 88 ms 15848 KB Output is correct
11 Correct 95 ms 15844 KB Output is correct
12 Correct 91 ms 15812 KB Output is correct
13 Correct 86 ms 15856 KB Output is correct
14 Correct 88 ms 15856 KB Output is correct
15 Correct 95 ms 15856 KB Output is correct
16 Correct 6 ms 14668 KB Output is correct
17 Correct 7 ms 14620 KB Output is correct
18 Correct 10 ms 14732 KB Output is correct
19 Correct 34 ms 15004 KB Output is correct
20 Correct 69 ms 15408 KB Output is correct
21 Correct 95 ms 15856 KB Output is correct
22 Correct 89 ms 15864 KB Output is correct
23 Correct 92 ms 15820 KB Output is correct
24 Correct 89 ms 15812 KB Output is correct
25 Correct 90 ms 15812 KB Output is correct
26 Correct 94 ms 15852 KB Output is correct
27 Correct 90 ms 15872 KB Output is correct
28 Correct 92 ms 15852 KB Output is correct
29 Correct 100 ms 15832 KB Output is correct
30 Correct 91 ms 15852 KB Output is correct
31 Correct 7 ms 14712 KB Output is correct
32 Correct 7 ms 14640 KB Output is correct
33 Correct 7 ms 14668 KB Output is correct
34 Correct 9 ms 14668 KB Output is correct
35 Correct 9 ms 14720 KB Output is correct
36 Correct 10 ms 14668 KB Output is correct
37 Correct 21 ms 14796 KB Output is correct
38 Correct 22 ms 14908 KB Output is correct
39 Correct 40 ms 15084 KB Output is correct
40 Correct 70 ms 15500 KB Output is correct
41 Correct 95 ms 15812 KB Output is correct
42 Correct 100 ms 15820 KB Output is correct
43 Correct 94 ms 15800 KB Output is correct
44 Correct 101 ms 15860 KB Output is correct
45 Correct 93 ms 15880 KB Output is correct
46 Correct 92 ms 15876 KB Output is correct
47 Correct 103 ms 15812 KB Output is correct
48 Correct 96 ms 15848 KB Output is correct
49 Correct 108 ms 15856 KB Output is correct
50 Correct 94 ms 15856 KB Output is correct
51 Correct 100 ms 15856 KB Output is correct
52 Correct 96 ms 15872 KB Output is correct
53 Correct 93 ms 15812 KB Output is correct
54 Correct 97 ms 15816 KB Output is correct
55 Correct 118 ms 15816 KB Output is correct
56 Correct 103 ms 15864 KB Output is correct
57 Correct 94 ms 15812 KB Output is correct
58 Correct 92 ms 15856 KB Output is correct
59 Correct 101 ms 15820 KB Output is correct
60 Correct 92 ms 15852 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 7 ms 14668 KB Output is correct
2 Correct 7 ms 14668 KB Output is correct
3 Correct 7 ms 14668 KB Output is correct
4 Correct 6 ms 14668 KB Output is correct
5 Correct 6 ms 14668 KB Output is correct
6 Correct 6 ms 14668 KB Output is correct
7 Correct 6 ms 14668 KB Output is correct
8 Correct 7 ms 14668 KB Output is correct
9 Correct 8 ms 14668 KB Output is correct
10 Correct 6 ms 14668 KB Output is correct
11 Correct 8 ms 14668 KB Output is correct
12 Correct 6 ms 14668 KB Output is correct
13 Correct 10 ms 14748 KB Output is correct
14 Correct 32 ms 15052 KB Output is correct
15 Correct 65 ms 15496 KB Output is correct
16 Correct 97 ms 15852 KB Output is correct
17 Correct 121 ms 15856 KB Output is correct
18 Correct 88 ms 15856 KB Output is correct
19 Correct 86 ms 15820 KB Output is correct
20 Correct 88 ms 15848 KB Output is correct
21 Correct 95 ms 15844 KB Output is correct
22 Correct 91 ms 15812 KB Output is correct
23 Correct 86 ms 15856 KB Output is correct
24 Correct 88 ms 15856 KB Output is correct
25 Correct 95 ms 15856 KB Output is correct
26 Correct 6 ms 14668 KB Output is correct
27 Correct 7 ms 14620 KB Output is correct
28 Correct 10 ms 14732 KB Output is correct
29 Correct 34 ms 15004 KB Output is correct
30 Correct 69 ms 15408 KB Output is correct
31 Correct 95 ms 15856 KB Output is correct
32 Correct 89 ms 15864 KB Output is correct
33 Correct 92 ms 15820 KB Output is correct
34 Correct 89 ms 15812 KB Output is correct
35 Correct 90 ms 15812 KB Output is correct
36 Correct 94 ms 15852 KB Output is correct
37 Correct 90 ms 15872 KB Output is correct
38 Correct 92 ms 15852 KB Output is correct
39 Correct 100 ms 15832 KB Output is correct
40 Correct 91 ms 15852 KB Output is correct
41 Correct 7 ms 14712 KB Output is correct
42 Correct 7 ms 14640 KB Output is correct
43 Correct 7 ms 14668 KB Output is correct
44 Correct 9 ms 14668 KB Output is correct
45 Correct 9 ms 14720 KB Output is correct
46 Correct 10 ms 14668 KB Output is correct
47 Correct 21 ms 14796 KB Output is correct
48 Correct 22 ms 14908 KB Output is correct
49 Correct 40 ms 15084 KB Output is correct
50 Correct 70 ms 15500 KB Output is correct
51 Correct 95 ms 15812 KB Output is correct
52 Correct 100 ms 15820 KB Output is correct
53 Correct 94 ms 15800 KB Output is correct
54 Correct 101 ms 15860 KB Output is correct
55 Correct 93 ms 15880 KB Output is correct
56 Correct 92 ms 15876 KB Output is correct
57 Correct 103 ms 15812 KB Output is correct
58 Correct 96 ms 15848 KB Output is correct
59 Correct 108 ms 15856 KB Output is correct
60 Correct 94 ms 15856 KB Output is correct
61 Correct 100 ms 15856 KB Output is correct
62 Correct 96 ms 15872 KB Output is correct
63 Correct 93 ms 15812 KB Output is correct
64 Correct 97 ms 15816 KB Output is correct
65 Correct 118 ms 15816 KB Output is correct
66 Correct 103 ms 15864 KB Output is correct
67 Correct 94 ms 15812 KB Output is correct
68 Correct 92 ms 15856 KB Output is correct
69 Correct 101 ms 15820 KB Output is correct
70 Correct 92 ms 15852 KB Output is correct
71 Correct 22 ms 14908 KB Output is correct
72 Correct 22 ms 14908 KB Output is correct
73 Correct 22 ms 14888 KB Output is correct
74 Correct 21 ms 14876 KB Output is correct
75 Correct 28 ms 14836 KB Output is correct
76 Correct 45 ms 15096 KB Output is correct
77 Correct 38 ms 15052 KB Output is correct
78 Correct 36 ms 15052 KB Output is correct
79 Correct 37 ms 15104 KB Output is correct
80 Correct 42 ms 15136 KB Output is correct
81 Correct 71 ms 15524 KB Output is correct
82 Correct 95 ms 15504 KB Output is correct
83 Correct 69 ms 15472 KB Output is correct
84 Correct 68 ms 15508 KB Output is correct
85 Correct 73 ms 15456 KB Output is correct
86 Correct 95 ms 15480 KB Output is correct
87 Correct 74 ms 15564 KB Output is correct
88 Correct 70 ms 15548 KB Output is correct
89 Correct 71 ms 15564 KB Output is correct
90 Correct 70 ms 15444 KB Output is correct
91 Correct 106 ms 16224 KB Output is correct
92 Correct 106 ms 16196 KB Output is correct
93 Correct 108 ms 16144 KB Output is correct
94 Correct 103 ms 16244 KB Output is correct
95 Correct 103 ms 16260 KB Output is correct
96 Correct 98 ms 16532 KB Output is correct
97 Correct 99 ms 16636 KB Output is correct
98 Correct 101 ms 16644 KB Output is correct
99 Correct 126 ms 16588 KB Output is correct
100 Correct 100 ms 16636 KB Output is correct
101 Correct 100 ms 16636 KB Output is correct
102 Correct 113 ms 16600 KB Output is correct
103 Correct 120 ms 16632 KB Output is correct
104 Correct 122 ms 16528 KB Output is correct
105 Correct 98 ms 16608 KB Output is correct
106 Correct 97 ms 17008 KB Output is correct
107 Correct 94 ms 16832 KB Output is correct
108 Correct 94 ms 16776 KB Output is correct
109 Correct 95 ms 16736 KB Output is correct
110 Correct 109 ms 16760 KB Output is correct
111 Correct 97 ms 16768 KB Output is correct
112 Correct 96 ms 16832 KB Output is correct
113 Correct 100 ms 16780 KB Output is correct
114 Correct 95 ms 16748 KB Output is correct
115 Correct 95 ms 16724 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 7 ms 14668 KB Output is correct
2 Correct 7 ms 14668 KB Output is correct
3 Correct 7 ms 14668 KB Output is correct
4 Correct 6 ms 14668 KB Output is correct
5 Correct 6 ms 14668 KB Output is correct
6 Correct 6 ms 14668 KB Output is correct
7 Correct 6 ms 14668 KB Output is correct
8 Correct 7 ms 14668 KB Output is correct
9 Correct 8 ms 14668 KB Output is correct
10 Correct 6 ms 14668 KB Output is correct
11 Correct 8 ms 14668 KB Output is correct
12 Correct 6 ms 14668 KB Output is correct
13 Correct 10 ms 14748 KB Output is correct
14 Correct 32 ms 15052 KB Output is correct
15 Correct 65 ms 15496 KB Output is correct
16 Correct 97 ms 15852 KB Output is correct
17 Correct 121 ms 15856 KB Output is correct
18 Correct 88 ms 15856 KB Output is correct
19 Correct 86 ms 15820 KB Output is correct
20 Correct 88 ms 15848 KB Output is correct
21 Correct 95 ms 15844 KB Output is correct
22 Correct 91 ms 15812 KB Output is correct
23 Correct 86 ms 15856 KB Output is correct
24 Correct 88 ms 15856 KB Output is correct
25 Correct 95 ms 15856 KB Output is correct
26 Correct 6 ms 14668 KB Output is correct
27 Correct 7 ms 14620 KB Output is correct
28 Correct 10 ms 14732 KB Output is correct
29 Correct 34 ms 15004 KB Output is correct
30 Correct 69 ms 15408 KB Output is correct
31 Correct 95 ms 15856 KB Output is correct
32 Correct 89 ms 15864 KB Output is correct
33 Correct 92 ms 15820 KB Output is correct
34 Correct 89 ms 15812 KB Output is correct
35 Correct 90 ms 15812 KB Output is correct
36 Correct 94 ms 15852 KB Output is correct
37 Correct 90 ms 15872 KB Output is correct
38 Correct 92 ms 15852 KB Output is correct
39 Correct 100 ms 15832 KB Output is correct
40 Correct 91 ms 15852 KB Output is correct
41 Correct 7 ms 14712 KB Output is correct
42 Correct 7 ms 14640 KB Output is correct
43 Correct 7 ms 14668 KB Output is correct
44 Correct 9 ms 14668 KB Output is correct
45 Correct 9 ms 14720 KB Output is correct
46 Correct 10 ms 14668 KB Output is correct
47 Correct 21 ms 14796 KB Output is correct
48 Correct 22 ms 14908 KB Output is correct
49 Correct 40 ms 15084 KB Output is correct
50 Correct 70 ms 15500 KB Output is correct
51 Correct 95 ms 15812 KB Output is correct
52 Correct 100 ms 15820 KB Output is correct
53 Correct 94 ms 15800 KB Output is correct
54 Correct 101 ms 15860 KB Output is correct
55 Correct 93 ms 15880 KB Output is correct
56 Correct 92 ms 15876 KB Output is correct
57 Correct 103 ms 15812 KB Output is correct
58 Correct 96 ms 15848 KB Output is correct
59 Correct 108 ms 15856 KB Output is correct
60 Correct 94 ms 15856 KB Output is correct
61 Correct 100 ms 15856 KB Output is correct
62 Correct 96 ms 15872 KB Output is correct
63 Correct 93 ms 15812 KB Output is correct
64 Correct 97 ms 15816 KB Output is correct
65 Correct 118 ms 15816 KB Output is correct
66 Correct 103 ms 15864 KB Output is correct
67 Correct 94 ms 15812 KB Output is correct
68 Correct 92 ms 15856 KB Output is correct
69 Correct 101 ms 15820 KB Output is correct
70 Correct 92 ms 15852 KB Output is correct
71 Correct 22 ms 14908 KB Output is correct
72 Correct 22 ms 14908 KB Output is correct
73 Correct 22 ms 14888 KB Output is correct
74 Correct 21 ms 14876 KB Output is correct
75 Correct 28 ms 14836 KB Output is correct
76 Correct 45 ms 15096 KB Output is correct
77 Correct 38 ms 15052 KB Output is correct
78 Correct 36 ms 15052 KB Output is correct
79 Correct 37 ms 15104 KB Output is correct
80 Correct 42 ms 15136 KB Output is correct
81 Correct 71 ms 15524 KB Output is correct
82 Correct 95 ms 15504 KB Output is correct
83 Correct 69 ms 15472 KB Output is correct
84 Correct 68 ms 15508 KB Output is correct
85 Correct 73 ms 15456 KB Output is correct
86 Correct 95 ms 15480 KB Output is correct
87 Correct 74 ms 15564 KB Output is correct
88 Correct 70 ms 15548 KB Output is correct
89 Correct 71 ms 15564 KB Output is correct
90 Correct 70 ms 15444 KB Output is correct
91 Correct 106 ms 16224 KB Output is correct
92 Correct 106 ms 16196 KB Output is correct
93 Correct 108 ms 16144 KB Output is correct
94 Correct 103 ms 16244 KB Output is correct
95 Correct 103 ms 16260 KB Output is correct
96 Correct 98 ms 16532 KB Output is correct
97 Correct 99 ms 16636 KB Output is correct
98 Correct 101 ms 16644 KB Output is correct
99 Correct 126 ms 16588 KB Output is correct
100 Correct 100 ms 16636 KB Output is correct
101 Correct 100 ms 16636 KB Output is correct
102 Correct 113 ms 16600 KB Output is correct
103 Correct 120 ms 16632 KB Output is correct
104 Correct 122 ms 16528 KB Output is correct
105 Correct 98 ms 16608 KB Output is correct
106 Correct 97 ms 17008 KB Output is correct
107 Correct 94 ms 16832 KB Output is correct
108 Correct 94 ms 16776 KB Output is correct
109 Correct 95 ms 16736 KB Output is correct
110 Correct 109 ms 16760 KB Output is correct
111 Correct 97 ms 16768 KB Output is correct
112 Correct 96 ms 16832 KB Output is correct
113 Correct 100 ms 16780 KB Output is correct
114 Correct 95 ms 16748 KB Output is correct
115 Correct 95 ms 16724 KB Output is correct
116 Correct 684 ms 16484 KB Output is correct
117 Correct 618 ms 16576 KB Output is correct
118 Correct 3026 ms 16768 KB Output is correct
119 Correct 3199 ms 16784 KB Output is correct
120 Correct 3297 ms 16772 KB Output is correct
121 Correct 6669 ms 16976 KB Output is correct
122 Correct 6797 ms 16976 KB Output is correct
123 Execution timed out 7077 ms 16748 KB Time limit exceeded
124 Halted 0 ms 0 KB -