Submission #386983

#	Time	Username	Problem	Language	Result	Execution time	Memory
386983		rainboy	Painting Walls (APIO20_paint)	C++17	Compilation error	0 ms	0 KiB

This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.

paint

#include "paint.h" #include <vector> const int N = 100000, K = 100000; int minimumInstructions(int n, int m, int k, std::vector<int> aa, std::vector<int> kk, std::vector<std::vector<int>> aaa) { static int jj[K]; int h, i, i_, j, ans; memset(jj, -1, m * sizeof *jj); for (j = 0; j < m; j++) for (h = 0; h < kk[j]; h++) jj[aaa[j][h]] = j; for (i = 0; i < n; i++) if (jj[aa[i]] == -1) return 0; ans = 0; for (i = 0; i < n; i = i_) { i_ = i + 1; while (i_ < n && (jj[aa[i_ - 1]] + 1) % m == jj[aa[i_]]) i_++; if (i_ - i < m) return -1; ans += (i_ - i + m - 1) / m; } return ans; }

Compilation message (stderr)

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:10:2: error: 'memset' was not declared in this scope
   10 |  memset(jj, -1, m * sizeof *jj);
      |  ^~~~~~
paint.cpp:2:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include "paint.h"
  +++ |+#include <cstring>
    2 | #include <vector>