Compilare: user.cpp: In function ‘int main()’: user.cpp:8:24: warning: unused variable ‘gasit’ [-Wunused-variable] int n,k,x,i,mij,dr,st,gasit,s,maxi,z,nrt; ^~~~~ user.cpp:6:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("transport.in","r",stdin); ^ user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("transport.out","w",stdout); ^ user.cpp:40:12: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout<<x; ^