View Compilation Error

0_0_30672147_15987.cpp: In function 'int main()':
0_0_30672147_15987.cpp:54:9: error: 'ull' was not declared in this scope
         ull ans=0;
         ^
0_0_30672147_15987.cpp:72:32: error: 'ans' was not declared in this scope
                     if (ty==2) ans+=dp[i][idx];
                                ^
0_0_30672147_15987.cpp:74:41: error: 'ans' was not declared in this scope
                         if (dp[i][idx]) ans+=kp[i][idx];
                                         ^
0_0_30672147_15987.cpp:81:30: error: 'ans' was not declared in this scope
         else printf("%lld\n",ans);
                              ^