View Compilation Error

0_0_5982579_23194.cpp:1: error: expected constructor, destructor, or type conversion before '<' token
0_0_5982579_23194.cpp:1: error: expected `,' or `;' before '<' token
0_0_5982579_23194.cpp: In function `int main()':
0_0_5982579_23194.cpp:31: error: `cin' undeclared (first use this function)
0_0_5982579_23194.cpp:31: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_5982579_23194.cpp:55: error: `memset' undeclared (first use this function)
0_0_5982579_23194.cpp:85: error: `cout' undeclared (first use this function)
0_0_5982579_23194.cpp:85: error: `endl' undeclared (first use this function)