Compilare: user.cpp: In function ‘int main()’: user.cpp:65:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<l[x].size();i++) ^ user.cpp:79:38: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] mini=min(mini,memo((1<<(k+1))-1 xor 1<<i,i)+d[v[i]][1]); ^ user.cpp:42:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&n,&m); ^ user.cpp:43:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&k); ^ user.cpp:45:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&v[i]); ^ user.cpp:48:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d %d",&x,&y,&aux.c); ^