View Compilation Error

0_0_11414587_7422.cpp: In function `int Max(int)':
0_0_11414587_7422.cpp:102: error: `itoa' undeclared (first use this function)
0_0_11414587_7422.cpp:102: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_11414587_7422.cpp: In function `bool judge(long long int)':
0_0_11414587_7422.cpp:116: error: `itoa' undeclared (first use this function)