Compilare: user.cpp: In function ‘int main()’: user.cpp:8:28: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘long long int*’ [-Wformat=] scanf("%lld%ld",&cer,&n); ^ user.cpp:31:19: warning: left shift count >= width of type [enabled by default] max1=-(1<<60); ^ user.cpp:6:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pic.in","r",stdin); ^ user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pic.out","w",stdout); ^ user.cpp:8:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%ld",&cer,&n); ^ user.cpp:15:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&a[y][x]); ^