View Compilation Error

0_0_37364113_10909.cpp: In function 'int main()':
0_0_37364113_10909.cpp:6:21: error: 'sacnf' was not declared in this scope
  while(sacnf("%d",&m)!=EOF) {
                     ^
0_0_37364113_10909.cpp:11:15: error: 'n' was not declared in this scope
    for(i=0; i<n; i++) {
               ^