sorting.cpp:4:9: error: 'pair' does not name a type
4 | typedef pair<long long int, int> P;
| ^~~~
sorting.cpp:5:1: error: 'vector' does not name a type
5 | vector<P> So;
| ^~~~~~
sorting.cpp:6:1: error: 'vector' does not name a type
6 | vector<long long int> S;
| ^~~~~~
sorting.cpp:7:1: error: 'vector' does not name a type
7 | vector<int> X, Y, P, Q;
| ^~~~~~
sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:13:9: error: 'So' was not declared in this scope; did you mean 'S2'?
13 | So.push_back(P(S2[i],i));
| ^~
| S2
sorting.cpp:13:22: error: 'P' was not declared in this scope
13 | So.push_back(P(S2[i],i));
| ^
sorting.cpp:14:9: error: 'S' was not declared in this scope
14 | S.push_back(S2[i]);
| ^
sorting.cpp:15:9: error: 'X' was not declared in this scope
15 | X.push_back(X2[i]);
| ^
sorting.cpp:16:9: error: 'Y' was not declared in this scope
16 | Y.push_back(Y2[i]);
| ^
sorting.cpp:19:9: error: 'So' was not declared in this scope; did you mean 'S2'?
19 | So[i].first = N * So[i].first + i;
| ^~
| S2
sorting.cpp:20:9: error: 'S' was not declared in this scope
20 | S[i] = N * S[i] + i;
| ^
sorting.cpp:22:10: error: 'So' was not declared in this scope; did you mean 'S2'?
22 | sort(So.begin(),So.end());
| ^~
| S2
sorting.cpp:22:5: error: 'sort' was not declared in this scope; did you mean 'std::sort'?
22 | sort(So.begin(),So.end());
| ^~~~
| std::sort
In file included from /usr/include/c++/10/algorithm:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
from sorting.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:4880:5: note: 'std::sort' declared here
4880 | sort(_RandomAccessIterator __first, _RandomAccessIterator __last,
| ^~~~
sorting.cpp:25:12: error: 'S' was not declared in this scope
25 | if(S[i] == So[i].first) continue;
| ^
sorting.cpp:28:14: error: 'S' was not declared in this scope
28 | swap(S[i],S[So[i].second]);
| ^
sorting.cpp:28:9: error: 'swap' was not declared in this scope
28 | swap(S[i],S[So[i].second]);
| ^~~~
sorting.cpp:28:9: note: suggested alternatives:
In file included from /usr/include/c++/10/regex:62,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
from sorting.cpp:2:
/usr/include/c++/10/bits/regex.h:2141:5: note: 'std::__cxx11::swap'
2141 | swap(match_results<_Bi_iter, _Alloc>& __lhs,
| ^~~~
In file included from /usr/include/c++/10/exception:147,
from /usr/include/c++/10/ios:39,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from sorting.cpp:2:
/usr/include/c++/10/bits/exception_ptr.h:169:5: note: 'std::__exception_ptr::swap'
169 | swap(exception_ptr& __lhs, exception_ptr& __rhs)
| ^~~~
In file included from /usr/include/c++/10/bits/nested_exception.h:40,
from /usr/include/c++/10/exception:148,
from /usr/include/c++/10/ios:39,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from sorting.cpp:2:
/usr/include/c++/10/bits/move.h:189:5: note: 'std::swap'
189 | swap(_Tp& __a, _Tp& __b)
| ^~~~
sorting.cpp:11:12: warning: unused variable 'j' [-Wunused-variable]
11 | int i, j;
| ^
sorting.cpp:9:41: warning: unused parameter 'M' [-Wunused-parameter]
9 | int findSwapPairs(int N2, int S2[], int M, int X2[], int Y2[], int P1[], int P2[]) {
| ~~~~^