839736_0_0_1131.cpp:95: error: stray '\161' in program
839736_0_0_1131.cpp:95: error: stray '\198' in program
839736_0_0_1131.cpp: In member function `void SegTree::get_sum_from(int, int, int)':
839736_0_0_1131.cpp:100: error: `sum' undeclared (first use this function)
839736_0_0_1131.cpp:100: error: (Each undeclared identifier is reported only once for each function it appears in.)
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