View Compilation Error

0_0_6046012_10440.cpp: In function `int mex(int)':
0_0_6046012_10440.cpp:7: error: `nbsp' undeclared (first use this function)
0_0_6046012_10440.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6046012_10440.cpp:13: error: break statement not within loop or switch
0_0_6046012_10440.cpp: In function `int main()':
0_0_6046012_10440.cpp:27: error: `nbsp' undeclared (first use this function)
0_0_6046012_10440.cpp:49: error: expected primary-expression before "else"
0_0_6046012_10440.cpp:49: error: expected `;' before "else"