Compilare: user.cpp: In function ‘int main()’: user.cpp:18:33: 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:22:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &val[i][j] ) ; ^ user.cpp:36:56: warning: ‘maxc’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (maxim < val[x1][i] && val[x1][i] < val[x1][y1]) { ^ user.cpp:36:56: warning: ‘maxl’ may be used uninitialized in this function [-Wmaybe-uninitialized]