Compilare: main.cpp: In function 'int main()': main.cpp:109:9: warning: unused variable 'tp' [-Wunused-variable] int tp,x,pr; ^~ main.cpp:114:9: warning: unused variable 'point' [-Wunused-variable] int point=1; ^~~~~ main.cpp:115:10: warning: unused variable 'loc' [-Wunused-variable] bool loc=0; ^~~ main.cpp:72:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bfs2.in","r",stdin); ^ main.cpp:73:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bfs2.out","w",stdout); ^ main.cpp:75:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&s); ^ main.cpp:84:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^ main.cpp:90:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&b[i]); ^ main.cpp:146:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&q); ^ main.cpp:150:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("\n%c%d%d",&aux,&x,&pr); ^