sequence.cpp:74:2: error: extended character is not valid in an identifier
74 | int q1 = persist[lower_bound(v.begin(), v.end(), make_pair(i, 0))-v.begin()].query(persist[0].root, st+1, en-1);
| ^
sequence.cpp:74:5: error: extended character is not valid in an identifier
74 | int q1 = persist[lower_bound(v.begin(), v.end(), make_pair(i, 0))-v.begin()].query(persist[0].root, st+1, en-1);
| ^
sequence.cpp:74:8: error: extended character is not valid in an identifier
74 | int q1 = persist[lower_bound(v.begin(), v.end(), make_pair(i, 0))-v.begin()].query(persist[0].root, st+1, en-1);
| ^
sequence.cpp:75:2: error: extended character is not valid in an identifier
75 | int q2 = persist[N].query(persist[lower_bound(v.begin(), v.end(), make_pair(i+1, 0))-v.begin()].root, st+1, en-1);
| ^
sequence.cpp:75:5: error: extended character is not valid in an identifier
75 | int q2 = persist[N].query(persist[lower_bound(v.begin(), v.end(), make_pair(i+1, 0))-v.begin()].root, st+1, en-1);
| ^
sequence.cpp:75:8: error: extended character is not valid in an identifier
75 | int q2 = persist[N].query(persist[lower_bound(v.begin(), v.end(), make_pair(i+1, 0))-v.begin()].root, st+1, en-1);
| ^
sequence.cpp: In function 'bool check(int)':
sequence.cpp:71:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
71 | for(int j=0;j+x-1<ct[i].size();j++) {
| ~~~~~^~~~~~~~~~~~~
sequence.cpp:74:2: error: '\U000000a0' was not declared in this scope
74 | int q1 = persist[lower_bound(v.begin(), v.end(), make_pair(i, 0))-v.begin()].query(persist[0].root, st+1, en-1);
| ^
sequence.cpp:75:4: error: expected ';' before '\U000000a0'
75 | int q2 = persist[N].query(persist[lower_bound(v.begin(), v.end(), make_pair(i+1, 0))-v.begin()].root, st+1, en-1);
| ^~
| ;
sequence.cpp:76:14: error: 'q1' was not declared in this scope; did you mean 'y1'?
76 | if(abs(q1-q2)<=x) return true;
| ^~
| y1
sequence.cpp:76:17: error: 'q2' was not declared in this scope
76 | if(abs(q1-q2)<=x) return true;
| ^~
sequence.cpp:72:11: warning: unused variable 'st' [-Wunused-variable]
72 | int st = ct[i][j];
| ^~
sequence.cpp:73:11: warning: unused variable 'en' [-Wunused-variable]
73 | int en = ct[i][j+x-1];
| ^~