View Compilation Error

0_0_12012696_16580.cpp: In function `int main()':
0_0_12012696_16580.cpp:19: error: `itoa' undeclared (first use this function)
0_0_12012696_16580.cpp:19: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12012696_16580.cpp: At global scope:
0_0_12012696_16580.cpp:30: error: expected constructor, destructor, or type conversion before '|' token
0_0_12012696_16580.cpp:30: error: expected `,' or `;' before '|' token