Compilare: user.cpp: In function ‘int main()’: user.cpp:9:30: warning: unused variable ‘stc’ [-Wunused-variable] int i, j, n, c1, c2, sc, stc, smax,stmax, dmax; ^ user.cpp:9:40: warning: unused variable ‘stmax’ [-Wunused-variable] int i, j, n, c1, c2, sc, stc, smax,stmax, dmax; ^ user.cpp:9:47: warning: unused variable ‘dmax’ [-Wunused-variable] int i, j, n, c1, c2, sc, stc, smax,stmax, dmax; ^ user.cpp:10:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:13:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[i][j]); ^