Compilare: user.cpp: In function ‘int main()’: user.cpp:26:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv3.in","r",stdin); ^ user.cpp:27:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv3.out","w",stdout); ^ user.cpp:28:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ user.cpp:31:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ user.cpp: In function ‘int caut(int, int, int)’: user.cpp:20:13: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(s[poz]==val) ^ user.cpp: In function ‘int main()’: user.cpp:20:13: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:8:9: note: ‘poz’ was declared here int poz; ^