Compilare: user.cpp: In function ‘int main()’: user.cpp:70:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.in","r",stdin); ^ user.cpp:71:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.out","w",stdout); ^ user.cpp:73:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:75:84: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld%lld%lld%lld%lld%d", &m[1][1],&m[1][2],&m[1][3],&a,&b,&c,&n); ^ user.cpp: In function ‘long long int ridic(int, int, int, int)’: user.cpp:63:18: warning: array subscript is above array bounds [-Warray-bounds] CI[1][1]=(m[1][1]*rez[1][1]+m[1][2]*rez[2][1]+m[1][3]*rez[3][1])%mod; ^ user.cpp:63:36: warning: array subscript is above array bounds [-Warray-bounds] CI[1][1]=(m[1][1]*rez[1][1]+m[1][2]*rez[2][1]+m[1][3]*rez[3][1])%mod; ^ user.cpp:63:54: warning: array subscript is above array bounds [-Warray-bounds] CI[1][1]=(m[1][1]*rez[1][1]+m[1][2]*rez[2][1]+m[1][3]*rez[3][1])%mod; ^