View Compilation Error

0_0_17300451_6623.cpp: In function 'int main()':
0_0_17300451_6623.cpp:17:35: error: 'lower_bound' was not declared in this scope
    *lower_bound(dp, dp + n, num[i]) = num[i];
                                   ^
0_0_17300451_6623.cpp:18:43: error: 'lower_bound' was not declared in this scope
   sum = lower_bound(dp, dp + n, 0x3f3f3f3f) - dp;
                                           ^