View Compilation Error

0_0_7847271_1663.cpp: In function `int main()':
0_0_7847271_1663.cpp:69: error: `h1' undeclared (first use this function)
0_0_7847271_1663.cpp:69: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7847271_1663.cpp:70: error: `m1' undeclared (first use this function)
0_0_7847271_1663.cpp:71: error: `s11' undeclared (first use this function)
0_0_7847271_1663.cpp:72: error: `h2' undeclared (first use this function)
0_0_7847271_1663.cpp:73: error: `m2' undeclared (first use this function)
0_0_7847271_1663.cpp:74: error: `s22' undeclared (first use this function)