0_0_30378168_10789.cpp: In function 'void build()':
0_0_30378168_10789.cpp:32:23: error: 'rooot' was not declared in this scope
Q.push(ch[rooot][i]);
^
0_0_30378168_10789.cpp: At global scope:
0_0_30378168_10789.cpp:51:1: error: expected initializer before 'int'
int main() {
^
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