View Compilation Error

0_0_12970930_5154.cpp:1:25: bits/stdc++.h: No such file or directory
0_0_12970930_5154.cpp: In function `int main()':
0_0_12970930_5154.cpp:9: error: `scanf' undeclared (first use this function)
0_0_12970930_5154.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_12970930_5154.cpp:16: error: `abs' undeclared (first use this function)
0_0_12970930_5154.cpp:18: error: `printf' undeclared (first use this function)