Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:21:21: error: ‘strlen’ was not declared in this scope int gigi=strlen(q); ^ user.cpp:12:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&m); ^ user.cpp:20:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin," %[^\n]",q); ^