Compilare: user.cpp: In function ‘void cautare(int, int)’: user.cpp:18:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (op==0) ^ user.cpp:25:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (op==1) ^ user.cpp:32:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (op==2) ^ user.cpp: In function ‘int main()’: user.cpp:43:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.in","r",stdin); ^ user.cpp:44:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cautbin.out","w",stdout); ^ user.cpp:45:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:47:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&a[i]); ^ user.cpp:48:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&m); ^ user.cpp:51:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&op,&x); ^ user.cpp: In function ‘void cautare(int, int)’: user.cpp:29:27: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] while (a[m]==x) m++; ^