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View Compilation Error

0_0_39087213_16221.cpp: In function 'int main()':
0_0_39087213_16221.cpp:45:9: error: 'memset' was not declared in this scope
   45 |         memset(aMat, 0, sizeof(aMat));
      |         ^~~~~~
0_0_39087213_16221.cpp:4:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    3 | #include <vector>
  +++ |+#include <cstring>
    4 | using namespace std;


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