Compilare: user.cpp: In function ‘int main()’: user.cpp:4:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tir.in","r",stdin); ^ user.cpp:5:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tir.out","w",stdout); ^ user.cpp:7:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&m,&k); ^ user.cpp:9:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&l[i],&c[i]); ^ user.cpp:36:42: warning: ‘cmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d\n%d %d",smax,lmax+1,cmax+1); ^ user.cpp:36:42: warning: ‘lmax’ may be used uninitialized in this function [-Wmaybe-uninitialized]