0_0_3903353_4200.cpp:14: error: expected unqualified-id before "int"
0_0_3903353_4200.cpp: In function `void paixu()':
0_0_3903353_4200.cpp:27: error: `n' undeclared (first use this function)
0_0_3903353_4200.cpp:27: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3903353_4200.cpp: In function `void build(int, int, int)':
0_0_3903353_4200.cpp:49: error: 'struct SegTree' has no member named 'r'
0_0_3903353_4200.cpp: In function `void add(int, int, int, int)':
0_0_3903353_4200.cpp:60: error: 'struct SegTree' has no member named 'r'
0_0_3903353_4200.cpp:65: error: 'struct SegTree' has no member named 'r'
0_0_3903353_4200.cpp: In function `long long int query(int, int, int)':
0_0_3903353_4200.cpp:81: error: expected `;' before '}' token
0_0_3903353_4200.cpp:82: error: 'struct SegTree' has no member named 'r'
0_0_3903353_4200.cpp:86: error: 'struct SegTree' has no member named 'r'
0_0_3903353_4200.cpp: In function `int main()':
0_0_3903353_4200.cpp:96: error: `n' undeclared (first use this function)
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