Compilare: user.cpp: In constructor ‘triple::triple(int, int, int)’: user.cpp:15:20: warning: ‘triple::key’ will be initialized after [-Wreorder] int ind, node, key; ^ user.cpp:15:9: warning: ‘int triple::ind’ [-Wreorder] int ind, node, key; ^ user.cpp:16:5: warning: when initialized here [-Wreorder] triple(int key, int ind, int node) : key(key), ind(ind), node(node) {} ^ user.cpp: In function ‘void read(int&)’: user.cpp:60:67: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(cursor==Bsize) fread(Buffer, 1, Bsize, stdin), cursor=0; ^ user.cpp:67:67: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(cursor==Bsize) fread(Buffer, 1, Bsize, stdin), cursor=0; ^ user.cpp: In function ‘int main()’: user.cpp:87:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arb.in", "r", stdin); ^ user.cpp:88:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arb.out", "w", stdout); ^ user.cpp:90:45: 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, Bsize, stdin), cursor=0; ^