Compilare: user.cpp: In function ‘int add(int&, int)’: user.cpp:5:9: warning: no return statement in function returning non-void [-Wreturn-type] a=a%mod;} ^ user.cpp: In function ‘int init(int)’: user.cpp:10:16: warning: no return statement in function returning non-void [-Wreturn-type] d[row][i][j]=0;} ^ user.cpp: In function ‘int main()’: user.cpp:12:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tablite.in","r",stdin); ^ user.cpp:13:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tablite.out","w",stdout); ^ user.cpp:15:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&s); ^