View Compilation Error

0_0_30256904_4508.c: In function 'main':
0_0_30256904_4508.c:11:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(long long i=3;i<=22;i++){
  ^
0_0_30256904_4508.c:11:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_30256904_4508.c:15:2: error: 'cin' undeclared (first use in this function)
  cin>>t;
  ^
0_0_30256904_4508.c:15:2: note: each undeclared identifier is reported only once for each function it appears in