View Compilation Error

0_0_32470872_3456.cpp:67:7: error: unable to find numeric literal operator 'operator""N'
 }tans[1N];
       ^
0_0_32470872_3456.cpp:67:7: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
0_0_32470872_3456.cpp: In function 'void solve()':
0_0_32470872_3456.cpp:147:4: error: 'tans' was not declared in this scope
    tans[tot].dis=a[i]+ansr.dis-R*(i-1);
    ^
0_0_32470872_3456.cpp:170:4: error: 'tans' was not declared in this scope
    tans[tot].dis=a[i]+ansl.dis-R*(n+1-i);
    ^
0_0_32470872_3456.cpp:190:7: error: 'tans' was not declared in this scope
  sort(tans+1,tans+1+tot);
       ^