Compilare: user.cpp:1:0: warning: ignoring #pragma comment [-Wunknown-pragmas] #pragma comment(linker, "/stack:200000000") ^ user.cpp: In function ‘int main()’: user.cpp:17:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define sz size() ^ user.cpp:37:21: note: in expansion of macro ‘sz’ for(int i=1;i<a.sz;i++){ ^ user.cpp:17:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define sz size() ^ user.cpp:43:21: note: in expansion of macro ‘sz’ for(int i=0;i<b.sz;i++){ ^ user.cpp:17:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define sz size() ^ user.cpp:46:17: note: in expansion of macro ‘sz’ if(j==a.sz){ ^ user.cpp:17:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define sz size() ^ user.cpp:52:23: note: in expansion of macro ‘sz’ for(int i=0;i<sol.sz;i++){ ^