boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
7 | #define fp(a,i,c) for(int (a) = (i); (a) < (c); (a)++)
| ^
boxes.cpp:15:6: note: in expansion of macro 'fp'
15 | fp(i,0,n){
| ^~
boxes.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
7 | #define fp(a,i,c) for(int (a) = (i); (a) < (c); (a)++)
| ^
boxes.cpp:22:3: note: in expansion of macro 'fp'
22 | fp(i,0,n)
| ^~
boxes.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
7 | #define fp(a,i,c) for(int (a) = (i); (a) < (c); (a)++)
| ^
boxes.cpp:24:3: note: in expansion of macro 'fp'
24 | fp(i,0,n)
| ^~
boxes.cpp:28:1: warning: control reaches end of non-void function [-Wreturn-type]
28 | }
| ^