Type an input and write what you think is the output . Each problem is converted to Web Assembly, so any possible input will show the corresponding output. Only correct predictions count.
Locked until you have predicted 3 outputs correctly.
| 1 | int solution(vector<vector<int>> spans) { |
| 2 | |
| 3 | if (spans.empty()) { |
| 4 | return 0; |
| 5 | } |
| 6 | |
| 7 | sort(spans.begin(), spans.end(), |
| 8 | [](const vector<int>& a, const vector<int>& b) { |
| 9 | return a[1] < b[1]; |
| 10 | }); |
| 11 | |
| 12 | int kept = 0; |
| 13 | int edge = INT_MIN; |
| 14 | |
| 15 | for (const auto& s : spans) { |
| 16 | |
| 17 | if (s[0] >= edge) { |
| 18 | kept++; |
| 19 | edge = s[1]; |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | int total = spans.size(); |
| 24 | |
| 25 | return total - kept; |
| 26 | } |
Names have been stripped. The signature is the only clue you get for free. Compiled as C++20 with the standard headers and using namespace std; already in scope.