Compilare: user.cpp: In function ‘void Get(int, int)’: user.cpp:124:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (son != father) ^ user.cpp: In function ‘void Initialize()’: user.cpp:180:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < here[i].size(); j++) ^ user.cpp:181:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < here[i].size(); k++) { ^ user.cpp: In function ‘void ChangeEdge(int, int, int)’: user.cpp:221:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < here[p].size(); i++) ^ user.cpp:225:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < here[p].size(); j++) ^ user.cpp:226:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < here[p].size(); k++) ^ user.cpp:232:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < here[p].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:248:17: warning: unused variable ‘x’ [-Wunused-variable] int x = Read(), k = Read(), m = Read(); ^ user.cpp: In function ‘char Advance()’: user.cpp:26:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, SIZE, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:240:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ostrov.in", "r", stdin); ^ user.cpp:241:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ostrov.out", "w", stdout); ^