Compilare: user.cpp: In function ‘int main()’: user.cpp:38:41: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘short int*’ [-Wformat=] fscanf(fin, "%d", &mat[i][j]); ^ user.cpp:31:60: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d%d%d", &n, &m, &pl, &pc, &cl, &cc); ^ user.cpp:38:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &mat[i][j]); ^ user.cpp:71:22: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized] int dmin = dist[b]; ^ user.cpp:22:15: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] viz[t] = 1; ^ user.cpp:30:42: note: ‘a’ was declared here int n, m, pl, pc, cl, cc, nrnod = 0, a, b; ^