View Compilation Error

0_0_16540804_27016.cpp: In function 'int p(int&)':
0_0_16540804_27016.cpp:58:16: error: 'inf' was not declared in this scope
     int u=0,mm=inf,l;
                ^
0_0_16540804_27016.cpp:63:12: error: 'l' was not declared in this scope
         mm=l=inf;
            ^
0_0_16540804_27016.cpp: In function 'int main()':
0_0_16540804_27016.cpp:122:29: error: 'inf' was not declared in this scope
                 memset(prim,inf,sizeof(prim));
                             ^