Compilare: main.cpp: In function 'int main()': main.cpp:45:22: warning: unused variable 'in' [-Wunused-variable] int p, i, j, n, g, in, sf, ll ,cc, st, dr, mij; ^~ main.cpp:45:26: warning: unused variable 'sf' [-Wunused-variable] int p, i, j, n, g, in, sf, ll ,cc, st, dr, mij; ^~ main.cpp:45:30: warning: unused variable 'll' [-Wunused-variable] int p, i, j, n, g, in, sf, ll ,cc, st, dr, mij; ^~ main.cpp:45:34: warning: unused variable 'cc' [-Wunused-variable] int p, i, j, n, g, in, sf, ll ,cc, st, dr, mij; ^~ main.cpp:48:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d",&p); ^ main.cpp:50:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d",&n,&g); ^ main.cpp:53:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d",&a[i][j]); ^ main.cpp:58:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d",&n); ^ main.cpp:62:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d",&a[i][j]); ^