View Compilation Error

0_0_17229250_1926.cpp:24:1: error: 'uint' does not name a type
 uint nextComb(uint x)//获得当前x(x中有k个１)的字典序下一位
 ^
0_0_17229250_1926.cpp: In function 'int main()':
0_0_17229250_1926.cpp:98:72: error: 'nextComb' was not declared in this scope
                 for(int used = tmp;used < (1 << n);used = nextComb(used))
                                                                        ^
0_0_17229250_1926.cpp:143:72: error: 'nextComb' was not declared in this scope
                 for(int used = tmp;used < (1 << n);used = nextComb(used))
                                                                        ^