View Compilation Error

0_0_36500145_5793.cpp:4:7: error: 'll' does not name a type
 const ll INF = 0x3f3f3f3f;
       ^
0_0_36500145_5793.cpp: In function 'int main()':
0_0_36500145_5793.cpp:22:45: error: 'INF' was not declared in this scope
                 if(value == -1) add[i][j] = INF ;
                                             ^
0_0_36500145_5793.cpp:31:28: error: 'INF' was not declared in this scope
                 dp[i][j] = INF ;
                            ^
0_0_36500145_5793.cpp:40:19: error: 'INF' was not declared in this scope
         int ans = INF ;
                   ^