Compilare: user.cpp: In function ‘long long int q2(long long int, long long int, long long int)’: user.cpp:25:15: warning: variable ‘i’ set but not used [-Wunused-but-set-variable] long long i, j, s, d, val, nr, k, ok, nr0, rez, sol; ^ user.cpp: In function ‘int main()’: user.cpp:63:22: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d",&x); ^ user.cpp:67:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d",&a[i][j]); ^ user.cpp:57:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qvect.in","r",stdin); ^ user.cpp:58:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qvect.out","w",stdout); ^ user.cpp:60:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&n,&q); ^ user.cpp:63:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^ user.cpp:67:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^ user.cpp:72:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld%lld",&op,&x,&y); ^ user.cpp: In function ‘long long int q2(long long int, long long int, long long int)’: user.cpp:25:48: warning: ‘rez’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long i, j, s, d, val, nr, k, ok, nr0, rez, sol; ^