sequence.cpp:73:2: error: extended character is not valid in an identifier
73 | int en = ct[i][j+x-1];int q1=persist[lower_bound(v.begin(),v.end(),make_pair(i,0))-v.begin()].query(persist[0].root,st+1,en-1);int q2=persist[N].query(persist[lower_bound(v.begin(),v.end(),make_pair(i+1,0))-v.begin()].root,st+1,en-1);if(abs(q1-q2)<=x) return true;
| ^
sequence.cpp:73:5: error: extended character is not valid in an identifier
73 | int en = ct[i][j+x-1];int q1=persist[lower_bound(v.begin(),v.end(),make_pair(i,0))-v.begin()].query(persist[0].root,st+1,en-1);int q2=persist[N].query(persist[lower_bound(v.begin(),v.end(),make_pair(i+1,0))-v.begin()].root,st+1,en-1);if(abs(q1-q2)<=x) return true;
| ^
sequence.cpp:73:8: error: extended character is not valid in an identifier
73 | int en = ct[i][j+x-1];int q1=persist[lower_bound(v.begin(),v.end(),make_pair(i,0))-v.begin()].query(persist[0].root,st+1,en-1);int q2=persist[N].query(persist[lower_bound(v.begin(),v.end(),make_pair(i+1,0))-v.begin()].root,st+1,en-1);if(abs(q1-q2)<=x) return true;
| ^
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:73:2: error: '\U000000a0' was not declared in this scope
73 | int en = ct[i][j+x-1];int q1=persist[lower_bound(v.begin(),v.end(),make_pair(i,0))-v.begin()].query(persist[0].root,st+1,en-1);int q2=persist[N].query(persist[lower_bound(v.begin(),v.end(),make_pair(i+1,0))-v.begin()].root,st+1,en-1);if(abs(q1-q2)<=x) return true;
| ^
sequence.cpp:73:131: error: 'en' was not declared in this scope; did you mean 'yn'?
73 | int en = ct[i][j+x-1];int q1=persist[lower_bound(v.begin(),v.end(),make_pair(i,0))-v.begin()].query(persist[0].root,st+1,en-1);int q2=persist[N].query(persist[lower_bound(v.begin(),v.end(),make_pair(i+1,0))-v.begin()].root,st+1,en-1);if(abs(q1-q2)<=x) return true;
| ^~
| yn