View Compilation Error

0_0_17235793_2865.cpp:18:39: error: redefinition of 'long long int r'
 long long solve(long long r,long long r);
                                       ^
0_0_17235793_2865.cpp:18:27: note: 'long long int r' previously declared here
 long long solve(long long r,long long r);
                           ^
0_0_17235793_2865.cpp: In function 'long long int find(int)':
0_0_17235793_2865.cpp:30:69: error: too many arguments to function 'long long int solve(long long int)'
    long long tmp = x - factor[i-1] - solve(factor[i]-x,factor[i-1]-1);
                                                                     ^
0_0_17235793_2865.cpp:18:11: note: declared here
 long long solve(long long r,long long r);
           ^