Compilare: user.cpp: In function ‘bool cmpXY(Point, Point)’: user.cpp:39:35: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return A.x < B.x || A.x == B.x && A.y < B.y; ^ user.cpp: In function ‘bool cmpYX(Point, Point)’: user.cpp:43:35: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] return A.y < B.y || A.y == B.y && A.x < B.x; ^ user.cpp: In function ‘double dei(int, int)’: user.cpp:67:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < closeP.size(); ++i) ^ user.cpp:68:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j <= 7 && i+j < closeP.size(); ++j) ^ user.cpp: In function ‘void readData()’: user.cpp:23:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ user.cpp:25:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &x, &y); ^ user.cpp: In function ‘int main()’: user.cpp:76:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmap.in", "r", stdin); ^ user.cpp:77:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmap.out", "w", stdout); ^