Compilare: user.cpp: In function ‘int main()’: user.cpp:67:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.in", "r", stdin); ^ user.cpp:68:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rj.out", "w", stdout); ^ user.cpp:72:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&N,&M); cin.get(); //TREC DE ENTER ^ user.cpp:101:19: warning: ‘y_J’ may be used uninitialized in this function [-Wmaybe-uninitialized] LEE_J(x_J,y_J); ^ user.cpp:101:19: warning: ‘x_J’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:93:19: warning: ‘y_R’ may be used uninitialized in this function [-Wmaybe-uninitialized] LEE_R(x_R,y_R); ^ user.cpp:93:19: warning: ‘x_R’ may be used uninitialized in this function [-Wmaybe-uninitialized]