View Compilation Error

0_0_21054282_2322.cpp: In function 'int main()':
0_0_21054282_2322.cpp:10:12: error: conflicting declaration 'int m'
  int i, T, m, k;
            ^
0_0_21054282_2322.cpp:9:12: note: previous declaration as 'long long int m'
  long long m, num, sum = 0;
            ^