답안 #526185

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
526185 2022-02-13T22:13:57 Z Plurm Diversity (CEOI21_diversity) C++11
64 / 100
7000 ms 9156 KB
#include <bits/stdc++.h>
using namespace std;

template <typename T>
class FenwickTree{
public:
  T* FT;
  int n;
  bool negmode;
  FenwickTree(int sz = 300000, bool negindex = true){
    n = sz+505;
    FT = new T[n];
    fill(FT, FT+n, (T)0);
    negmode = negindex;
  }
  inline void add(int idx, T amt){
    if(negmode) idx += n/2;
    while(idx < n){
      FT[idx] += amt;
      idx += idx & -idx;
    }
  }
  inline T sum(int idx){
    if(negmode) idx += n/2;
    T ret = (T)0;
    while(idx > 0){
      ret += FT[idx];
      idx -= idx & -idx;
    }
    return ret;
  }
  inline 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;
  }
  inline 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

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

FenwickTree<int> dq(300000, false); // using deque indexing
inline 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.sum(FT2.n/2-1) - FT2.sum(b) - 1ll * (b-1) * (FT1.sum(FT1.n/2-1) - FT1.sum(b))
  + 1ll * (b+1) * FT1.sum(b-1) - FT2.sum(b-1) + x+1;
}
inline 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.sum(FT2.n/2-1) - FT2.sum(b) - 1ll * (b-1) * (FT1.sum(FT1.n/2-1) - FT1.sum(b))
  + 1ll * (b+1) * FT1.sum(b-1) - FT2.sum(b-1) + x;
}

vector<tuple<int,int,int>> qbckt[2048]; // (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 = 1300;
  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);
      |     ~~~~~^~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 3 ms 5068 KB Output is correct
3 Correct 2 ms 5068 KB Output is correct
4 Correct 2 ms 5068 KB Output is correct
5 Correct 2 ms 5024 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5068 KB Output is correct
8 Correct 2 ms 5028 KB Output is correct
9 Correct 3 ms 5068 KB Output is correct
10 Correct 2 ms 4972 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 2 ms 5068 KB Output is correct
3 Correct 5 ms 5068 KB Output is correct
4 Correct 27 ms 5580 KB Output is correct
5 Correct 56 ms 6204 KB Output is correct
6 Correct 90 ms 6904 KB Output is correct
7 Correct 79 ms 6840 KB Output is correct
8 Correct 83 ms 6856 KB Output is correct
9 Correct 86 ms 6868 KB Output is correct
10 Correct 82 ms 6892 KB Output is correct
11 Correct 85 ms 6852 KB Output is correct
12 Correct 96 ms 6800 KB Output is correct
13 Correct 84 ms 6980 KB Output is correct
14 Correct 85 ms 6868 KB Output is correct
15 Correct 76 ms 6852 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 2 ms 5068 KB Output is correct
3 Correct 5 ms 5068 KB Output is correct
4 Correct 27 ms 5580 KB Output is correct
5 Correct 56 ms 6204 KB Output is correct
6 Correct 90 ms 6904 KB Output is correct
7 Correct 79 ms 6840 KB Output is correct
8 Correct 83 ms 6856 KB Output is correct
9 Correct 86 ms 6868 KB Output is correct
10 Correct 82 ms 6892 KB Output is correct
11 Correct 85 ms 6852 KB Output is correct
12 Correct 96 ms 6800 KB Output is correct
13 Correct 84 ms 6980 KB Output is correct
14 Correct 85 ms 6868 KB Output is correct
15 Correct 76 ms 6852 KB Output is correct
16 Correct 3 ms 5068 KB Output is correct
17 Correct 3 ms 5068 KB Output is correct
18 Correct 7 ms 5068 KB Output is correct
19 Correct 37 ms 5724 KB Output is correct
20 Correct 55 ms 6380 KB Output is correct
21 Correct 83 ms 7104 KB Output is correct
22 Correct 85 ms 7028 KB Output is correct
23 Correct 103 ms 7028 KB Output is correct
24 Correct 101 ms 6992 KB Output is correct
25 Correct 82 ms 7016 KB Output is correct
26 Correct 91 ms 6996 KB Output is correct
27 Correct 85 ms 7012 KB Output is correct
28 Correct 86 ms 6852 KB Output is correct
29 Correct 81 ms 6960 KB Output is correct
30 Correct 85 ms 7036 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 2 ms 5068 KB Output is correct
3 Correct 5 ms 5068 KB Output is correct
4 Correct 27 ms 5580 KB Output is correct
5 Correct 56 ms 6204 KB Output is correct
6 Correct 90 ms 6904 KB Output is correct
7 Correct 79 ms 6840 KB Output is correct
8 Correct 83 ms 6856 KB Output is correct
9 Correct 86 ms 6868 KB Output is correct
10 Correct 82 ms 6892 KB Output is correct
11 Correct 85 ms 6852 KB Output is correct
12 Correct 96 ms 6800 KB Output is correct
13 Correct 84 ms 6980 KB Output is correct
14 Correct 85 ms 6868 KB Output is correct
15 Correct 76 ms 6852 KB Output is correct
16 Correct 3 ms 5068 KB Output is correct
17 Correct 3 ms 5068 KB Output is correct
18 Correct 7 ms 5068 KB Output is correct
19 Correct 37 ms 5724 KB Output is correct
20 Correct 55 ms 6380 KB Output is correct
21 Correct 83 ms 7104 KB Output is correct
22 Correct 85 ms 7028 KB Output is correct
23 Correct 103 ms 7028 KB Output is correct
24 Correct 101 ms 6992 KB Output is correct
25 Correct 82 ms 7016 KB Output is correct
26 Correct 91 ms 6996 KB Output is correct
27 Correct 85 ms 7012 KB Output is correct
28 Correct 86 ms 6852 KB Output is correct
29 Correct 81 ms 6960 KB Output is correct
30 Correct 85 ms 7036 KB Output is correct
31 Correct 4 ms 5068 KB Output is correct
32 Correct 3 ms 5068 KB Output is correct
33 Correct 3 ms 5068 KB Output is correct
34 Correct 6 ms 5068 KB Output is correct
35 Correct 5 ms 5068 KB Output is correct
36 Correct 5 ms 5068 KB Output is correct
37 Correct 18 ms 5464 KB Output is correct
38 Correct 17 ms 5468 KB Output is correct
39 Correct 30 ms 5828 KB Output is correct
40 Correct 62 ms 6616 KB Output is correct
41 Correct 87 ms 7324 KB Output is correct
42 Correct 87 ms 7376 KB Output is correct
43 Correct 96 ms 7364 KB Output is correct
44 Correct 89 ms 7384 KB Output is correct
45 Correct 87 ms 7364 KB Output is correct
46 Correct 90 ms 7384 KB Output is correct
47 Correct 118 ms 7356 KB Output is correct
48 Correct 89 ms 7272 KB Output is correct
49 Correct 90 ms 7480 KB Output is correct
50 Correct 94 ms 7344 KB Output is correct
51 Correct 93 ms 7352 KB Output is correct
52 Correct 96 ms 7352 KB Output is correct
53 Correct 96 ms 7376 KB Output is correct
54 Correct 88 ms 7348 KB Output is correct
55 Correct 93 ms 7376 KB Output is correct
56 Correct 101 ms 7360 KB Output is correct
57 Correct 91 ms 7372 KB Output is correct
58 Correct 98 ms 7380 KB Output is correct
59 Correct 94 ms 7332 KB Output is correct
60 Correct 106 ms 7364 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 3 ms 5068 KB Output is correct
3 Correct 2 ms 5068 KB Output is correct
4 Correct 2 ms 5068 KB Output is correct
5 Correct 2 ms 5024 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5068 KB Output is correct
8 Correct 2 ms 5028 KB Output is correct
9 Correct 3 ms 5068 KB Output is correct
10 Correct 2 ms 4972 KB Output is correct
11 Correct 2 ms 5068 KB Output is correct
12 Correct 2 ms 5068 KB Output is correct
13 Correct 5 ms 5068 KB Output is correct
14 Correct 27 ms 5580 KB Output is correct
15 Correct 56 ms 6204 KB Output is correct
16 Correct 90 ms 6904 KB Output is correct
17 Correct 79 ms 6840 KB Output is correct
18 Correct 83 ms 6856 KB Output is correct
19 Correct 86 ms 6868 KB Output is correct
20 Correct 82 ms 6892 KB Output is correct
21 Correct 85 ms 6852 KB Output is correct
22 Correct 96 ms 6800 KB Output is correct
23 Correct 84 ms 6980 KB Output is correct
24 Correct 85 ms 6868 KB Output is correct
25 Correct 76 ms 6852 KB Output is correct
26 Correct 3 ms 5068 KB Output is correct
27 Correct 3 ms 5068 KB Output is correct
28 Correct 7 ms 5068 KB Output is correct
29 Correct 37 ms 5724 KB Output is correct
30 Correct 55 ms 6380 KB Output is correct
31 Correct 83 ms 7104 KB Output is correct
32 Correct 85 ms 7028 KB Output is correct
33 Correct 103 ms 7028 KB Output is correct
34 Correct 101 ms 6992 KB Output is correct
35 Correct 82 ms 7016 KB Output is correct
36 Correct 91 ms 6996 KB Output is correct
37 Correct 85 ms 7012 KB Output is correct
38 Correct 86 ms 6852 KB Output is correct
39 Correct 81 ms 6960 KB Output is correct
40 Correct 85 ms 7036 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 3 ms 5068 KB Output is correct
43 Correct 3 ms 5068 KB Output is correct
44 Correct 6 ms 5068 KB Output is correct
45 Correct 5 ms 5068 KB Output is correct
46 Correct 5 ms 5068 KB Output is correct
47 Correct 18 ms 5464 KB Output is correct
48 Correct 17 ms 5468 KB Output is correct
49 Correct 30 ms 5828 KB Output is correct
50 Correct 62 ms 6616 KB Output is correct
51 Correct 87 ms 7324 KB Output is correct
52 Correct 87 ms 7376 KB Output is correct
53 Correct 96 ms 7364 KB Output is correct
54 Correct 89 ms 7384 KB Output is correct
55 Correct 87 ms 7364 KB Output is correct
56 Correct 90 ms 7384 KB Output is correct
57 Correct 118 ms 7356 KB Output is correct
58 Correct 89 ms 7272 KB Output is correct
59 Correct 90 ms 7480 KB Output is correct
60 Correct 94 ms 7344 KB Output is correct
61 Correct 93 ms 7352 KB Output is correct
62 Correct 96 ms 7352 KB Output is correct
63 Correct 96 ms 7376 KB Output is correct
64 Correct 88 ms 7348 KB Output is correct
65 Correct 93 ms 7376 KB Output is correct
66 Correct 101 ms 7360 KB Output is correct
67 Correct 91 ms 7372 KB Output is correct
68 Correct 98 ms 7380 KB Output is correct
69 Correct 94 ms 7332 KB Output is correct
70 Correct 106 ms 7364 KB Output is correct
71 Correct 17 ms 5500 KB Output is correct
72 Correct 18 ms 5452 KB Output is correct
73 Correct 18 ms 5452 KB Output is correct
74 Correct 17 ms 5496 KB Output is correct
75 Correct 19 ms 5388 KB Output is correct
76 Correct 33 ms 5864 KB Output is correct
77 Correct 33 ms 5916 KB Output is correct
78 Correct 44 ms 5944 KB Output is correct
79 Correct 36 ms 5928 KB Output is correct
80 Correct 41 ms 5900 KB Output is correct
81 Correct 67 ms 6856 KB Output is correct
82 Correct 71 ms 6788 KB Output is correct
83 Correct 68 ms 6840 KB Output is correct
84 Correct 68 ms 6788 KB Output is correct
85 Correct 62 ms 6740 KB Output is correct
86 Correct 72 ms 6904 KB Output is correct
87 Correct 75 ms 6984 KB Output is correct
88 Correct 89 ms 6920 KB Output is correct
89 Correct 64 ms 6984 KB Output is correct
90 Correct 66 ms 6980 KB Output is correct
91 Correct 103 ms 8356 KB Output is correct
92 Correct 102 ms 8348 KB Output is correct
93 Correct 96 ms 8244 KB Output is correct
94 Correct 98 ms 8356 KB Output is correct
95 Correct 104 ms 8352 KB Output is correct
96 Correct 94 ms 8900 KB Output is correct
97 Correct 94 ms 8900 KB Output is correct
98 Correct 113 ms 8820 KB Output is correct
99 Correct 93 ms 8900 KB Output is correct
100 Correct 91 ms 8800 KB Output is correct
101 Correct 97 ms 8852 KB Output is correct
102 Correct 91 ms 8900 KB Output is correct
103 Correct 94 ms 8892 KB Output is correct
104 Correct 108 ms 8816 KB Output is correct
105 Correct 96 ms 8912 KB Output is correct
106 Correct 93 ms 9128 KB Output is correct
107 Correct 105 ms 9156 KB Output is correct
108 Correct 92 ms 9104 KB Output is correct
109 Correct 91 ms 9096 KB Output is correct
110 Correct 101 ms 9136 KB Output is correct
111 Correct 97 ms 9140 KB Output is correct
112 Correct 88 ms 9136 KB Output is correct
113 Correct 98 ms 9156 KB Output is correct
114 Correct 101 ms 9136 KB Output is correct
115 Correct 98 ms 9144 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5068 KB Output is correct
2 Correct 3 ms 5068 KB Output is correct
3 Correct 2 ms 5068 KB Output is correct
4 Correct 2 ms 5068 KB Output is correct
5 Correct 2 ms 5024 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5068 KB Output is correct
8 Correct 2 ms 5028 KB Output is correct
9 Correct 3 ms 5068 KB Output is correct
10 Correct 2 ms 4972 KB Output is correct
11 Correct 2 ms 5068 KB Output is correct
12 Correct 2 ms 5068 KB Output is correct
13 Correct 5 ms 5068 KB Output is correct
14 Correct 27 ms 5580 KB Output is correct
15 Correct 56 ms 6204 KB Output is correct
16 Correct 90 ms 6904 KB Output is correct
17 Correct 79 ms 6840 KB Output is correct
18 Correct 83 ms 6856 KB Output is correct
19 Correct 86 ms 6868 KB Output is correct
20 Correct 82 ms 6892 KB Output is correct
21 Correct 85 ms 6852 KB Output is correct
22 Correct 96 ms 6800 KB Output is correct
23 Correct 84 ms 6980 KB Output is correct
24 Correct 85 ms 6868 KB Output is correct
25 Correct 76 ms 6852 KB Output is correct
26 Correct 3 ms 5068 KB Output is correct
27 Correct 3 ms 5068 KB Output is correct
28 Correct 7 ms 5068 KB Output is correct
29 Correct 37 ms 5724 KB Output is correct
30 Correct 55 ms 6380 KB Output is correct
31 Correct 83 ms 7104 KB Output is correct
32 Correct 85 ms 7028 KB Output is correct
33 Correct 103 ms 7028 KB Output is correct
34 Correct 101 ms 6992 KB Output is correct
35 Correct 82 ms 7016 KB Output is correct
36 Correct 91 ms 6996 KB Output is correct
37 Correct 85 ms 7012 KB Output is correct
38 Correct 86 ms 6852 KB Output is correct
39 Correct 81 ms 6960 KB Output is correct
40 Correct 85 ms 7036 KB Output is correct
41 Correct 4 ms 5068 KB Output is correct
42 Correct 3 ms 5068 KB Output is correct
43 Correct 3 ms 5068 KB Output is correct
44 Correct 6 ms 5068 KB Output is correct
45 Correct 5 ms 5068 KB Output is correct
46 Correct 5 ms 5068 KB Output is correct
47 Correct 18 ms 5464 KB Output is correct
48 Correct 17 ms 5468 KB Output is correct
49 Correct 30 ms 5828 KB Output is correct
50 Correct 62 ms 6616 KB Output is correct
51 Correct 87 ms 7324 KB Output is correct
52 Correct 87 ms 7376 KB Output is correct
53 Correct 96 ms 7364 KB Output is correct
54 Correct 89 ms 7384 KB Output is correct
55 Correct 87 ms 7364 KB Output is correct
56 Correct 90 ms 7384 KB Output is correct
57 Correct 118 ms 7356 KB Output is correct
58 Correct 89 ms 7272 KB Output is correct
59 Correct 90 ms 7480 KB Output is correct
60 Correct 94 ms 7344 KB Output is correct
61 Correct 93 ms 7352 KB Output is correct
62 Correct 96 ms 7352 KB Output is correct
63 Correct 96 ms 7376 KB Output is correct
64 Correct 88 ms 7348 KB Output is correct
65 Correct 93 ms 7376 KB Output is correct
66 Correct 101 ms 7360 KB Output is correct
67 Correct 91 ms 7372 KB Output is correct
68 Correct 98 ms 7380 KB Output is correct
69 Correct 94 ms 7332 KB Output is correct
70 Correct 106 ms 7364 KB Output is correct
71 Correct 17 ms 5500 KB Output is correct
72 Correct 18 ms 5452 KB Output is correct
73 Correct 18 ms 5452 KB Output is correct
74 Correct 17 ms 5496 KB Output is correct
75 Correct 19 ms 5388 KB Output is correct
76 Correct 33 ms 5864 KB Output is correct
77 Correct 33 ms 5916 KB Output is correct
78 Correct 44 ms 5944 KB Output is correct
79 Correct 36 ms 5928 KB Output is correct
80 Correct 41 ms 5900 KB Output is correct
81 Correct 67 ms 6856 KB Output is correct
82 Correct 71 ms 6788 KB Output is correct
83 Correct 68 ms 6840 KB Output is correct
84 Correct 68 ms 6788 KB Output is correct
85 Correct 62 ms 6740 KB Output is correct
86 Correct 72 ms 6904 KB Output is correct
87 Correct 75 ms 6984 KB Output is correct
88 Correct 89 ms 6920 KB Output is correct
89 Correct 64 ms 6984 KB Output is correct
90 Correct 66 ms 6980 KB Output is correct
91 Correct 103 ms 8356 KB Output is correct
92 Correct 102 ms 8348 KB Output is correct
93 Correct 96 ms 8244 KB Output is correct
94 Correct 98 ms 8356 KB Output is correct
95 Correct 104 ms 8352 KB Output is correct
96 Correct 94 ms 8900 KB Output is correct
97 Correct 94 ms 8900 KB Output is correct
98 Correct 113 ms 8820 KB Output is correct
99 Correct 93 ms 8900 KB Output is correct
100 Correct 91 ms 8800 KB Output is correct
101 Correct 97 ms 8852 KB Output is correct
102 Correct 91 ms 8900 KB Output is correct
103 Correct 94 ms 8892 KB Output is correct
104 Correct 108 ms 8816 KB Output is correct
105 Correct 96 ms 8912 KB Output is correct
106 Correct 93 ms 9128 KB Output is correct
107 Correct 105 ms 9156 KB Output is correct
108 Correct 92 ms 9104 KB Output is correct
109 Correct 91 ms 9096 KB Output is correct
110 Correct 101 ms 9136 KB Output is correct
111 Correct 97 ms 9140 KB Output is correct
112 Correct 88 ms 9136 KB Output is correct
113 Correct 98 ms 9156 KB Output is correct
114 Correct 101 ms 9136 KB Output is correct
115 Correct 98 ms 9144 KB Output is correct
116 Correct 4583 ms 7364 KB Output is correct
117 Correct 4508 ms 7364 KB Output is correct
118 Correct 5410 ms 7848 KB Output is correct
119 Correct 5235 ms 7904 KB Output is correct
120 Correct 5614 ms 7904 KB Output is correct
121 Correct 6657 ms 8300 KB Output is correct
122 Correct 6906 ms 8360 KB Output is correct
123 Execution timed out 7075 ms 8520 KB Time limit exceeded
124 Halted 0 ms 0 KB -