Compilare: user.cpp: In function ‘void kruskal(muchie*, long int*, long int, long int)’: user.cpp:79:59: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(fout,"%d %d\n", newArb[i].varf2, newArb[i].varf1); ^ user.cpp:79:59: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘long int’ [-Wformat=] user.cpp:55:17: warning: unused variable ‘k’ [-Wunused-variable] int set1, set2,k; ^ user.cpp: In function ‘int main()’: user.cpp:92:103: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] while ((fscanf(fp, "%d%d%d", &muchii[nrMuchii].varf1, &muchii[nrMuchii].varf2, &muchii[nrMuchii].cost))!=EOF) ^ user.cpp:92:103: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long int*’ [-Wformat=] user.cpp:92:103: warning: format ‘%d’ expects argument of type ‘int*’, but argument 5 has type ‘long int*’ [-Wformat=] user.cpp:89:7: warning: unused variable ‘i’ [-Wunused-variable] long i,nrNoduri=0; ^ user.cpp:91:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fp, "%d%d", &x, &y); ^