Compilare: user.cpp: In function ‘void Propag(int, int, int)’: user.cpp:29:9: warning: unused variable ‘mij’ [-Wunused-variable] int mij=((st+dr)>>1); ^ user.cpp: In function ‘int main()’: user.cpp:113:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("invazia.in","r",stdin); ^ user.cpp:114:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("invazia.out","w",stdout); ^ user.cpp:115:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n", &n,&m); ^ user.cpp:118:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%c ", &tip); ^ user.cpp:122:63: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d\n", &v[cnt].x,&v[cnt].y,&v[cnt].val); ^ user.cpp:136:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &aux); ^ user.cpp: In function ‘int Query(int, int, int, int)’: user.cpp:106:1: warning: control reaches end of non-void function [-Wreturn-type] } ^