Submission #1330974

#	Time	Username	Problem	Language	Result	Execution time	Memory
1330974		emv	World Map (IOI25_worldmap)	C++20	Compilation error	0 ms	0 KiB

worldmap

std::vector<std::vector<int>> create_map(int N, int M, std::vector<int> A, std::vector<int> B) {
    vector<vector<int>> ans(2 * N, vector<int> (2 * N, 0));
    int row = N * 2 / 3;
    for (int i = 0; i < M; i++) {
        int row_id = i / row;
        int str_id = i % row;
        ans[row_id * 2][str_id * 3] = A[i];
        ans[row_id * 2][str_id * 3 + 1] = B[i];
    }
    return ans;
}

Compilation message (stderr)

worldmap.cpp:1:6: error: 'vector' in namespace 'std' does not name a template type
    1 | std::vector<std::vector<int>> create_map(int N, int M, std::vector<int> A, std::vector<int> B) {
      |      ^~~~~~
worldmap.cpp:1:1: note: 'std::vector' is defined in header '<vector>'; did you forget to '#include <vector>'?
  +++ |+#include <vector>
    1 | std::vector<std::vector<int>> create_map(int N, int M, std::vector<int> A, std::vector<int> B) {