#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(long long i=0;i<(long long)(n);i++)
#define REP(i,k,n) for(long long i=k;i<(long long)(n);i++)
#define all(a) a.begin(),a.end()
#define rsort(a) {sort(all(a));reverse(all(a));}
#define pb emplace_back
#define eb emplace_back
#define lb(v,k) (lower_bound(all(v),(k))-v.begin())
#define ub(v,k) (upper_bound(all(v),(k))-v.begin())
#define fi first
#define se second
#define pi M_PI
#define PQ(T) priority_queue<T>
#define SPQ(T) priority_queue<T,vector<T>,greater<T>>
#define dame(a) {out(a);return 0;}
#define decimal cout<<fixed<<setprecision(15);
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
typedef long long ll;
using vi=vector<ll>;
#include "sorting.h"
int findSwapPairs(int n,int s[],int m,int x[],int y[],int P[],int Q[]){
vi v(n);
rep(i,n)v[i]=s[i];
rep(i,m)swap(v[x[i]],v[y[i]]);
vi target(n);rep(i,n)target[i]=i;
rep(i,m)P[i]=Q[i]=0;
for(int i=m-1;i>=0;i--){
int w=-1,t=-1;
rep(j,n)if(target[j]!=v[j])w=j;
if(w!=-1){
rep(j,n)if(target[w]==v[j])t=j;
assert(t!=-1);
P[i]=t;Q[i]=w;
swap(target[t],target[w]);
}
swap(target[x[i]],target[y[i]]);swap(v[x[i]],v[y[i]]);
}
return m;
}/*
int main(){
int n;cin>>n;
int s[10];rep(i,n)cin>>s[i];
int m;cin>>m;
int x[10],y[10];
rep(i,m)cin>>x[i]>>y[i];
int p[10],q[10];
out(findSwapPairs(n,s,m,x,y,p,q));
rep(i,m)outp(P(p[i],q[i]));
rep(i,m){
swap(s[x[i]],s[y[i]]);
swap(s[p[i]],s[q[i]]);
}
rep(i,n)cout<<s[i]<<' ';cout<<endl;
}*/
Compilation message
sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:30:38: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
30 | rep(j,n)if(target[j]!=v[j])w=j;
| ^
sorting.cpp:32:42: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
32 | rep(j,n)if(target[w]==v[j])t=j;
| ^
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
11 ms |
492 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
11 ms |
492 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |