#C++, (削除) 232 (削除ここまで)(削除) 250 (削除ここまで)(削除) 228 (削除ここまで)(削除) 192 (削除ここまで) 173 characters

#EDIT 1

#EDIT 2

#GOLF SCORECARD

C++, (削除) 232 (削除ここまで)(削除) 250 (削除ここまで)(削除) 228 (削除ここまで)(削除) 192 (削除ここまで) 173 characters

EDIT 1

EDIT 2

GOLF SCORECARD

#C++, (削除) 232 (削除ここまで) (削除) 250 (削除ここまで) (削除) 228 (削除ここまで) (削除) 192 (削除ここまで) 176 characters

#include<iostream>
int main(){long long n,x,y,i;for(std::cin>>n;n;--n){std::cin>>x>>y;i=(x*2-2)*(y-2<0?0:y-2)+(y*2-2)*(x-2<0?0:x-2)<<1;x*=y;std::cout<<x*x-x-i<<"\n";}return 0;}

• removed unnecessary clause: (~u>>31&(x<<1)-2) became ((x*2)-2) in 2 places, saved 16 characters (234)
• swapped ~u>>63&u for u<0?0:u in 2 places, saving 2 characters (232)
• swapped x-2<0?0:x-2 for u<0?0:u and removed definition of u u=x-2, in 2 places, saving 4 characters (228, shorter than original solution)
• removed function f and moved functionality into main, saved 28 characters (200)
• removed using namespace std; and used std::cout, std::cin, and "\n", saved 5 characters (195)
• changed std::cin>>n;for(;n>0;--n) to for(std::cin>>n;n;--n), saved 3 characters (192)
• removed typedef long long L; since its only used in one place now, saved 12 characters (180)
• removed 4 parens from statements like ((x*2)-2), saved 4 characters (176)

#C++, (削除) 232 (削除ここまで) (削除) 250 (削除ここまで) (削除) 228 (削除ここまで) (削除) 192 (削除ここまで) 173 characters

#include<iostream>
int main(){long long n,x,y,i;for(std::cin>>n;n--;)std::cin>>x>>y,i=(x*2-2)*(y-2<0?0:y-2)+(y*2-2)*(x-2<0?0:x-2)<<1,x*=y,std::cout<<x*x-x-i<<"\n";return 0;}

• removed unnecessary clause: (~u>>31&(x<<1)-2) became ((x*2)-2) in 2 places, saved 16 characters (234)
• swapped ~u>>63&u for u<0?0:u in 2 places, saving 2 characters (232)
• swapped x-2<0?0:x-2 for u<0?0:u and removed definition of u u=x-2, in 2 places, saving 4 characters (228, shorter than original solution)
• removed function f and moved functionality into main, saved 28 characters (200)
• removed using namespace std; and used std::cout, std::cin, and "\n", saved 5 characters (195)
• changed std::cin>>n;for(;n>0;--n) to for(std::cin>>n;n;--n), saved 3 characters (192)
• removed typedef long long L; since its only used in one place now, saved 12 characters (180)
• removed 4 parens from statements like ((x*2)-2), saved 4 characters (176)
• removed brackets from loop by using commas instead of semicolons, compressed loop condition from std::cin>>n;n;--n to std::cin>>n;n--;, saved 3 characters (173)

Width of board Number of positions eliminated
1 0
2 0
3 2
4 4
N 2N-4

I used my E=2N-4 formula along with the knowledge that for a board of length L, L-2 rows are viable (and thus count towards the exclusion count).

Width of board Number of positions eliminated
1 0
2 2
3 4
4 6
N 2N-2

I used my E=2N-2 formula along with the knowledge that for a board of length L, L-2 rows are viable (and thus count towards the exclusion count).