View Compilation Error

0_0_20538863_24558.cpp: In function 'int main()':
0_0_20538863_24558.cpp:5:2: error: 'int64' was not declared in this scope
  int64 i,n,s,m;
  ^
0_0_20538863_24558.cpp:6:23: error: 'n' was not declared in this scope
  while(scanf("%I64d",&n)!=EOF)
                       ^
0_0_20538863_24558.cpp:11:16: error: 'm' was not declared in this scope
    scanf("%d",&m);
                ^
0_0_20538863_24558.cpp:12:4: error: 's' was not declared in this scope
    s=pow(m,m);
    ^