View Compilation Error

0_0_30777808_13468.cpp: In function 'bool exec(ll)':
0_0_30777808_13468.cpp:31:20: error: 'n' was not declared in this scope
     for(int i=1;i<=n;i++) {
                    ^
0_0_30777808_13468.cpp: In function 'int main()':
0_0_30777808_13468.cpp:39:5: error: 'n' was not declared in this scope
     n = 10005;
     ^
0_0_30777808_13468.cpp:41:17: error: 't' was not declared in this scope
     scanf("%d",&t);
                 ^