Compilare: user.cpp: In function ‘int main()’: user.cpp:58:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,k,x,m; ^ user.cpp:55:38: 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:56:40: 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:60:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&N); ^ user.cpp:61:42: 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",&v[i]); ^ user.cpp:63:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&M); ^ user.cpp:66:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &k, &x); ^ user.cpp: In function ‘int CAUTARE_2(int)’: user.cpp:35:12: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] return m; ^ user.cpp: In function ‘int CAUTARE_3(int)’: user.cpp:50:12: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] return m; ^