Compilare: user.cpp: In function ‘int main()’: user.cpp:19:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(d[j]!=INF) ^ user.cpp:10:9: warning: unused variable ‘n’ [-Wunused-variable] int n,g,w,i,e,c,last,j; ^ user.cpp:8:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.in","r",stdin); ^ user.cpp:9:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("energii.out","w",stdout); ^ user.cpp:11:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&g,&w); ^ user.cpp:17:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&e,&c); ^