View Compilation Error

207255_0_22573.cpp:1:20: iostrteam: No such file or directory
207255_0_22573.cpp: In function `int main()':
207255_0_22573.cpp:5: error: `cin' undeclared (first use this function)
207255_0_22573.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
207255_0_22573.cpp:7: error: `s' undeclared (first use this function)
207255_0_22573.cpp:7: error: `gets' undeclared (first use this function)
207255_0_22573.cpp:9: error: `strlen' undeclared (first use this function)
207255_0_22573.cpp:13: error: `cout' undeclared (first use this function)
207255_0_22573.cpp:13: error: `endl' undeclared (first use this function)