tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:16:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
16 | #define rng(i,a,b) for(int (i)=(a);(i)<(b);(i)++)
| ^
tickets.cpp:17:18: note: in expansion of macro 'rng'
17 | #define rep(i,n) rng((i),0,(n))
| ^~~
tickets.cpp:31:3: note: in expansion of macro 'rep'
31 | rep(i,n) v.pb(x[i][0]);
| ^~~
tickets.cpp:16:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
16 | #define rng(i,a,b) for(int (i)=(a);(i)<(b);(i)++)
| ^
tickets.cpp:17:18: note: in expansion of macro 'rng'
17 | #define rep(i,n) rng((i),0,(n))
| ^~~
tickets.cpp:33:3: note: in expansion of macro 'rep'
33 | rep(i,n){
| ^~~
tickets.cpp:16:28: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
16 | #define rng(i,a,b) for(int (i)=(a);(i)<(b);(i)++)
| ^
tickets.cpp:17:18: note: in expansion of macro 'rng'
17 | #define rep(i,n) rng((i),0,(n))
| ^~~
tickets.cpp:37:3: note: in expansion of macro 'rep'
37 | rep(i,n)rep(j,m) answer[i][j]=0;
| ^~~
tickets.cpp:16:28: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
16 | #define rng(i,a,b) for(int (i)=(a);(i)<(b);(i)++)
| ^
tickets.cpp:17:18: note: in expansion of macro 'rng'
17 | #define rep(i,n) rng((i),0,(n))
| ^~~
tickets.cpp:37:11: note: in expansion of macro 'rep'
37 | rep(i,n)rep(j,m) answer[i][j]=0;
| ^~~