sorting.cpp: In function 'std::vector<std::pair<int, int> > check(int)':
sorting.cpp:22:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
22 | for(i=0;i<swaps.size();i++){
| ~^~~~~~~~~~~~~
sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:36:76: warning: declaration of 'N' shadows a global declaration [-Wshadow]
36 | int findSwapPairs(int N, int S[], int M, int X[], int Y[], int p[], int q[]) {
| ^
sorting.cpp:6:11: note: shadowed declaration is here
6 | const int N=2*1e5+5;
| ^
sorting.cpp:44:30: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
44 | if(check(mid).size() <= M) r=mid;
| ~~~~~~~~~~~~~~~~~~^~~~
sorting.cpp:48:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
48 | for(int i=0;i<ans.size();i++){
| ~^~~~~~~~~~~
sorting.cpp:51:20: warning: conversion from 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
51 | return ans.size();
| ~~~~~~~~^~