Compilare: user.cpp:11:18: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int n, m, d[20][1<<18+1], c[20][20]; ^ user.cpp: In function ‘void dfs(int)’: user.cpp:34:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<graf[nod].size();i++) ^ user.cpp:35:44: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if(drum^(1<<(graf[nod][i]))==0) ^ user.cpp: In function ‘void afisare()’: user.cpp:44:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<graf[0].size();i++) ^ user.cpp: In function ‘void citire()’: user.cpp:17:29: 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:21:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &x, &y); ^ user.cpp:22:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &c[x][y]); ^ user.cpp: In function ‘int main()’: user.cpp:54:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hamilton.in", "r", stdin); ^ user.cpp:55:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hamilton.out", "w", stdout); ^