View Compilation Error

0_0_4968238_21296.cpp: In function `void work()':
0_0_4968238_21296.cpp:60: error: `sen' undeclared (first use this function)
0_0_4968238_21296.cpp:60: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4968238_21296.cpp:60: error: expected `)' at end of input
0_0_4968238_21296.cpp:60: error: expected primary-expression at end of input
0_0_4968238_21296.cpp:60: error: expected `;' at end of input
0_0_4968238_21296.cpp:60: error: expected `}' at end of input
0_0_4968238_21296.cpp:60: error: expected `}' at end of input
0_0_4968238_21296.cpp:60: error: expected `}' at end of input