Compilare: user.cpp: In function ‘int main()’: user.cpp:56:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[500]’ [-Wformat=] scanf("%s ",&s); ^ user.cpp:64:14: warning: statement has no effect [-Wunused-value] for(i;i<a[0];i+=9){ ^ user.cpp:77:24: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[500]’ [-Wformat=] scanf("%s\n",&s); ^ user.cpp:85:14: warning: statement has no effect [-Wunused-value] for(i;i<b[0];i+=9){ ^ user.cpp:46:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("easylca.in","r",stdin); ^ user.cpp:47:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("easylca.out","w",stdout); ^ user.cpp:49:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&tests); ^ user.cpp:56:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s ",&s); ^ user.cpp:77:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",&s); ^