Compilare: user.cpp: In function ‘int main()’: user.cpp:45:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secvmin.in","r",stdin); ^ user.cpp:46:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("secvmin.out","w",stdout); ^ user.cpp:47:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:49:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++) scanf("%d",&v1[i]); ^ user.cpp:52:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v2[i].x); ^ user.cpp: In function ‘int caut(int, int, int)’: user.cpp:24:17: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(v2[poz].x==val) ^ user.cpp: In function ‘int main()’: user.cpp:24:17: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:12:9: note: ‘poz’ was declared here int poz; ^