View Compilation Error

0_0_4368564_15252.cpp: In function `int main()':
0_0_4368564_15252.cpp:23: error: `cin' undeclared (first use this function)
0_0_4368564_15252.cpp:23: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4368564_15252.cpp:34: error: expected `;' before ')' token
0_0_4368564_15252.cpp:46: error: `cout' undeclared (first use this function)
0_0_4368564_15252.cpp:46: error: `endl' undeclared (first use this function)