Compilare: user.cpp: In function ‘graph* readGraph()’: user.cpp:39:9: warning: unused variable ‘j’ [-Wunused-variable] int i, j, dist; ^ user.cpp:39:12: warning: unused variable ‘dist’ [-Wunused-variable] int i, j, dist; ^ user.cpp:42:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nr_varfuri); ^ user.cpp:47:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^ user.cpp: In function ‘int main()’: user.cpp:101:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gcycle.in", "r", stdin); ^ user.cpp:102:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gcycle.out", "w", stdout); ^ user.cpp: In function ‘graph* readGraph()’: user.cpp:46:2: warning: ‘nr_muchii’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i = 0; i < nr_muchii; i++) { ^ user.cpp: In function ‘int main()’: user.cpp:119:23: warning: ‘drum’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d ", drum[i]+1); ^