View Compilation Error

0_0_12687335_14236.cpp: In function `int main()':
0_0_12687335_14236.cpp:131: error: `N' undeclared (first use this function)
0_0_12687335_14236.cpp:131: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12687335_14236.cpp:131: error: `M' undeclared (first use this function)
0_0_12687335_14236.cpp:133: error: `p' undeclared (first use this function)
0_0_12687335_14236.cpp:137: error: 'struct lct' has no member named '_1'