Compilare: user.cpp: In function ‘void scmax(int, int*, int*)’: user.cpp:37:9: warning: unused variable ‘j’ [-Wunused-variable] int j , k , i; ^ user.cpp: In function ‘int main()’: user.cpp:96:21: warning: unused variable ‘k’ [-Wunused-variable] int n , m , i , k , sz1 , sz2 , ij; ^ user.cpp:96:37: warning: unused variable ‘ij’ [-Wunused-variable] int n , m , i , k , sz1 , sz2 , ij; ^~ user.cpp:100:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "%d" , &n); ^ user.cpp:101:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "\n"); ^ user.cpp:103:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "%d " , &a [i]); ^ user.cpp:104:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "%d" , &m); ^ user.cpp:105:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "\n"); ^ user.cpp:107:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (cin , "%d" , &b [i]); ^ user.cpp: In function ‘int form(int*, int*, int, int*, int*)’: user.cpp:80:11: warning: ‘posz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i = posz - 1; i >= 1 ; -- i) ~~^~~~~~~~~~