Compilare: user.cpp: In function ‘int main()’: user.cpp:38:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &T); ^ user.cpp:41:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%f %d %d", &S, &N, &Z); ^ user.cpp:53:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%f", &aux); ^ user.cpp:59:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%f", &aux2); ^ user.cpp: In function ‘float maxim(float**, int, int)’: user.cpp:15:9: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] return max; ^ user.cpp: In function ‘int main()’: user.cpp:84:27: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout, "%f\n", R * S); ^ user.cpp:11:3: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(max < m[i][col]) { ^ user.cpp:7:8: note: ‘max’ was declared here float max; ^