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0_0_10982923_15915.cpp:1:25: bits/stdc++.h: No such file or directory
0_0_10982923_15915.cpp: In function `int gao(int, int)':
0_0_10982923_15915.cpp:10: error: `sqrt' undeclared (first use this function)
0_0_10982923_15915.cpp:10: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10982923_15915.cpp: In function `int main()':
0_0_10982923_15915.cpp:22: error: `scanf' undeclared (first use this function)
0_0_10982923_15915.cpp:22: error: `EOF' undeclared (first use this function)
0_0_10982923_15915.cpp:32: error: `printf' undeclared (first use this function)