CSES - Aalto Competitive Programming 2024 - wk7 - Mon - Results
Submission details
Task:3SUM
Sender:hungdojan
Submission time:2024-10-21 16:46:43 +0300
Language:C++ (C++17)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.00 sdetails
#2ACCEPTED0.00 sdetails
#3ACCEPTED0.00 sdetails
#4ACCEPTED0.00 sdetails
#50.00 sdetails
#60.00 sdetails
#70.00 sdetails
#80.00 sdetails
#90.00 sdetails
#10ACCEPTED0.02 sdetails
#110.02 sdetails
#12ACCEPTED0.01 sdetails
#13ACCEPTED0.02 sdetails
#14ACCEPTED0.02 sdetails
#15ACCEPTED0.02 sdetails
#16ACCEPTED0.01 sdetails
#17ACCEPTED0.01 sdetails
#18ACCEPTED0.00 sdetails
#19ACCEPTED0.02 sdetails
#20ACCEPTED0.01 sdetails
#21ACCEPTED0.02 sdetails
#22ACCEPTED0.12 sdetails
#23ACCEPTED0.00 sdetails

Code

#include <bits/stdc++.h>
using namespace std;

#define I_2D(row, col, width) ((row) * (width) + (col))
#define PRINT_ARR(arr, n)                                                      \
  do {                                                                         \
    for (int i = 0; i < n; i++) {                                              \
      cout << arr[i] << " ";                                                   \
    }                                                                          \
    cout << "\n";                                                              \
  } while (0)
#define PRINT_VEC_ARR(v, n)                                                    \
  do {                                                                         \
    for (int i = 0; i < n; i++) {                                              \
      cout << i << ": ";                                                       \
      for (auto item : v[i]) {                                                 \
        cout << item << " ";                                                   \
      }                                                                        \
      cout << endl;                                                            \
    }                                                                          \
  } while (0)

typedef long long ll;

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  ll n, x;
  cin >> n >> x;

  vector<ll> arr(n, 0);
  unordered_map<ll, int> mapping;

  for (int i = 0; i < n; i++) {
    cin >> arr[i];
    mapping[arr[i]] = i;
  }

  sort(arr.begin(), arr.end());

  ll sum;
  for (int i = 0; i < n - 2; i++) {
    int f = i + 1;
    int s = n - 1;

    while (f < s) {
      sum = arr[i] + arr[f] + arr[s];
      if (sum == x) {
        cout << mapping[arr[i]] + 1 << " " << mapping[arr[f]] + 1 << " "
             << mapping[arr[s]] + 1 << endl;
        return 0;
      } else if (sum < x) {
        f++;
      } else {
        s--;
      }
    }
  }
  cout << "IMPOSSIBLE" << endl;
  return 0;
}

Test details

Test 1

Verdict: ACCEPTED

input
1 3
1

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 2

Verdict: ACCEPTED

input
3 5
1 3 2

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 3

Verdict: ACCEPTED

input
3 6
1 3 2

correct output
1 3 2

user output
1 3 2

Test 4

Verdict: ACCEPTED

input
3 7
3 2 1

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 5

Verdict:

input
7 3
2 1 1 2 2 1 1

correct output
2 3 7

user output
7 7 7

Test 6

Verdict:

input
7 4
1 1 2 2 1 2 1

correct output
1 2 6

user output
7 7 6

Test 7

Verdict:

input
7 5
1 2 1 2 2 1 1

correct output
1 2 5

user output
7 5 5

Test 8

Verdict:

input
7 6
2 1 1 1 1 2 2

correct output
1 6 7

user output
7 7 7

Test 9

Verdict:

input
5000 3
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1 2 5000

user output
5000 5000 5000

Test 10

Verdict: ACCEPTED

input
5000 4
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 11

Verdict:

input
5000 6
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
714 3518 4240

user output
4240 4240 4240

Test 12

Verdict: ACCEPTED

input
5000 919900245
663612758 9075403 585385629 98...

correct output
2787 465 2266

user output
2787 465 2266

Test 13

Verdict: ACCEPTED

input
5000 999989608
12983 25966 38949 51932 64915 ...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 14

Verdict: ACCEPTED

input
5000 1000000000
65536 131072 196608 262144 327...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 15

Verdict: ACCEPTED

input
5000 642700000
6427 12854 19281 25708 32135 3...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 16

Verdict: ACCEPTED

input
5000 919900246
663612758 9075403 585385629 98...

correct output
193 1698 4019

user output
193 1698 4019

Test 17

Verdict: ACCEPTED

input
5000 919900247
663612758 9075403 585385629 98...

correct output
4258 470 1911

user output
4258 470 1911

Test 18

Verdict: ACCEPTED

input
5000 6
6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...

correct output
4998 4999 5000

user output
4998 4999 5000

Test 19

Verdict: ACCEPTED

input
5000 919900247
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 20

Verdict: ACCEPTED

input
4999 919900245
9075403 585385629 987230075 83...

correct output
2786 464 2265

user output
2786 464 2265

Test 21

Verdict: ACCEPTED

input
5000 1000000000
261323261 25262018 237798562 3...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 22

Verdict: ACCEPTED

input
5000 76305003
1 5088 10175 15262 20349 25436...

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 23

Verdict: ACCEPTED

input
2 6
2 2

correct output
IMPOSSIBLE

user output
IMPOSSIBLE