View Compilation Error

0_0_37714729_7954.cpp: In function 'int main()':
0_0_37714729_7954.cpp:18:9: error: expected ';' before 'for'
         for(int i = 0;i<=n*(n-1)/2;i++) if(f[n][i])cout <<" "<< i;
         ^
0_0_37714729_7954.cpp:18:23: error: 'i' was not declared in this scope
         for(int i = 0;i<=n*(n-1)/2;i++) if(f[n][i])cout <<" "<< i;
                       ^