View Compilation Error

0_0_33982393_27065.cpp: In function 'long long int solve(long long int)':
0_0_33982393_27065.cpp:27:14: error: 'nt' was not declared in this scope
    rep(i, 0, nt - 1){
              ^
0_0_33982393_27065.cpp:5:35: note: in definition of macro 'rep'
 #define rep(i, a, b) for(__typeof(b) i = a; i <= (b); i++)
                                   ^
0_0_33982393_27065.cpp:5:40: error: invalid type in declaration before '=' token
 #define rep(i, a, b) for(__typeof(b) i = a; i <= (b); i++)
                                        ^
0_0_33982393_27065.cpp:27:4: note: in expansion of macro 'rep'
    rep(i, 0, nt - 1){
    ^