View Compilation Error

379386_0_0_5156.c: In function `main':
379386_0_0_5156.c:8: error: `sz' undeclared (first use in this function)
379386_0_0_5156.c:8: error: (Each undeclared identifier is reported only once
379386_0_0_5156.c:8: error: for each function it appears in.)
379386_0_0_5156.c:8: error: syntax error before "nn"
379386_0_0_5156.c:12: error: `nn' undeclared (first use in this function)