0_0_37580018_7682.cpp: In constructor 'SegmentTree<Info, Merge>::SegmentTree(std::vector<_RealType>)':
0_0_37580018_7682.cpp:17:9: error: 'function' was not declared in this scope
function<void(int, int, int)> build = [&](int u, int l, int r) {
^
0_0_37580018_7682.cpp:17:18: error: expected primary-expression before 'void'
function<void(int, int, int)> build = [&](int u, int l, int r) {
^
0_0_37580018_7682.cpp:26:22: error: there are no arguments to 'build' that depend on a template parameter, so a declaration of 'build' must be available [-fpermissive]
build(1, 1, n);
^
0_0_37580018_7682.cpp:26:22: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
0_0_37580018_7682.cpp: In instantiation of 'SegmentTree<Info, Merge>::SegmentTree(std::vector<_RealType>) [with Info = Info; Merge = std::plus<Info>]':
0_0_37580018_7682.cpp:107:35: required from here
0_0_37580018_7682.cpp:26:22: error: 'build' was not declared in this scope
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