View Compilation Error

0_0_9689031_14875.cpp: In function `int main()':
0_0_9689031_14875.cpp:6: error: `whilez' undeclared (first use this function)
0_0_9689031_14875.cpp:6: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9689031_14875.cpp:6: error: expected `;' before '{' token