#include<bits/stdc++.h> using namespace std; int n,m,a,b; long long soldierMasks[37]; pair<int,int> orders[1001]; set<long long>soldiersSolutions; //set<long long>soldiersSolutions2; set<long long>tobeErased; set<long long>tobeAdded; void printSoldier(long long soldier) { long long soldier2=soldier; for (int i=1;i<=n;i++) { //cerr<<soldier<<" "<<soldierMasks[n-1]<<endl; cerr<<((soldier & soldierMasks[n])>>(n-1)); soldier = soldier<<1; } cerr<<" "<<soldier2<<endl; } pair<long long, long long> getSoldiers(long long soldier, int swapA, int swapB) { int valA = (soldierMasks[swapA] & soldier)>>(swapA-1); int valB = (soldierMasks[swapB] & soldier)>>(swapB-1); if(valA==valB) return make_pair(soldier,0); if(valA==1) return make_pair(0,0); return make_pair(soldier, (soldier | soldierMasks[swapA]) & (~soldierMasks[swapB])); } void initSoldierMasks() { soldierMasks[1]=1; for(int i=2;i<=36;i++) soldierMasks[i] = soldierMasks[1]<<i-1; } long long setSoldiers(int k, int i) { long long soldier = 1; for(int j=1;j<k;j++) { soldier = soldier << 1; soldier+=1; } soldier = soldier << i; return soldier; } int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); cin>>n>>m; for(int i=0;i<m;i++) { cin>>a>>b; orders[i]=make_pair(a,b); } initSoldierMasks(); cout<<n%2<<" "; for(int k=2;k<n;k++) { //cerr<<"k: "<<k<<endl; long long result = 0; for(int i=0;i<n-k+1;i++) { //cerr<<"i: "<<i<<endl; soldiersSolutions.clear(); long long start = setSoldiers(k,i); //cerr<<"start: "; //printSoldier(start); soldiersSolutions.insert(start); for(int j=m-1;j>=0;j--) { //cerr<<"j: "<<j<<" "<<" order "<<orders[j].first<<" "<<orders[j].second<<endl; //soldiersSolutions2=soldiersSolutions; tobeAdded.clear(); tobeErased.clear(); for(auto soldierSolution: soldiersSolutions) { auto swapped = getSoldiers(soldierSolution,orders[j].first,orders[j].second); if(swapped.first==0) { //if(k==7){ //cerr<<"erasing "; //printSoldier(soldierSolution); //} tobeErased.insert(soldierSolution); //soldiersSolutions2.erase(soldierSolution); } if(swapped.second!=0) { //if(k==7){ //cerr<<"adding "; //printSoldier(swapped.second); //} tobeAdded.insert(swapped.second); //soldiersSolutions2.insert(swapped.second); } } for(auto val : tobeErased) { soldiersSolutions.erase(val); } for(auto val : tobeAdded) { soldiersSolutions.insert(val); } } //cerr<<"Adding to result "<<soldiersSolutions.size()<<" current result before is "<<result<<endl; //if(k==7 and i==1) //for(int s : soldiersSolutions) // printSoldier(s); result = (result + soldiersSolutions.size())%2; } cout<<result<<" "; } cout<<1; //cerr<<endl; //printSoldier(254); //printSoldier(getSoldiers(254,8,5).second); //printSoldier(254 | soldierMasks[8]); //printSoldier(soldierMasks[8]); return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | #include<bits/stdc++.h> using namespace std; int n,m,a,b; long long soldierMasks[37]; pair<int,int> orders[1001]; set<long long>soldiersSolutions; //set<long long>soldiersSolutions2; set<long long>tobeErased; set<long long>tobeAdded; void printSoldier(long long soldier) { long long soldier2=soldier; for (int i=1;i<=n;i++) { //cerr<<soldier<<" "<<soldierMasks[n-1]<<endl; cerr<<((soldier & soldierMasks[n])>>(n-1)); soldier = soldier<<1; } cerr<<" "<<soldier2<<endl; } pair<long long, long long> getSoldiers(long long soldier, int swapA, int swapB) { int valA = (soldierMasks[swapA] & soldier)>>(swapA-1); int valB = (soldierMasks[swapB] & soldier)>>(swapB-1); if(valA==valB) return make_pair(soldier,0); if(valA==1) return make_pair(0,0); return make_pair(soldier, (soldier | soldierMasks[swapA]) & (~soldierMasks[swapB])); } void initSoldierMasks() { soldierMasks[1]=1; for(int i=2;i<=36;i++) soldierMasks[i] = soldierMasks[1]<<i-1; } long long setSoldiers(int k, int i) { long long soldier = 1; for(int j=1;j<k;j++) { soldier = soldier << 1; soldier+=1; } soldier = soldier << i; return soldier; } int main() { ios_base::sync_with_stdio(0); cin.tie(NULL); cin>>n>>m; for(int i=0;i<m;i++) { cin>>a>>b; orders[i]=make_pair(a,b); } initSoldierMasks(); cout<<n%2<<" "; for(int k=2;k<n;k++) { //cerr<<"k: "<<k<<endl; long long result = 0; for(int i=0;i<n-k+1;i++) { //cerr<<"i: "<<i<<endl; soldiersSolutions.clear(); long long start = setSoldiers(k,i); //cerr<<"start: "; //printSoldier(start); soldiersSolutions.insert(start); for(int j=m-1;j>=0;j--) { //cerr<<"j: "<<j<<" "<<" order "<<orders[j].first<<" "<<orders[j].second<<endl; //soldiersSolutions2=soldiersSolutions; tobeAdded.clear(); tobeErased.clear(); for(auto soldierSolution: soldiersSolutions) { auto swapped = getSoldiers(soldierSolution,orders[j].first,orders[j].second); if(swapped.first==0) { //if(k==7){ //cerr<<"erasing "; //printSoldier(soldierSolution); //} tobeErased.insert(soldierSolution); //soldiersSolutions2.erase(soldierSolution); } if(swapped.second!=0) { //if(k==7){ //cerr<<"adding "; //printSoldier(swapped.second); //} tobeAdded.insert(swapped.second); //soldiersSolutions2.insert(swapped.second); } } for(auto val : tobeErased) { soldiersSolutions.erase(val); } for(auto val : tobeAdded) { soldiersSolutions.insert(val); } } //cerr<<"Adding to result "<<soldiersSolutions.size()<<" current result before is "<<result<<endl; //if(k==7 and i==1) //for(int s : soldiersSolutions) // printSoldier(s); result = (result + soldiersSolutions.size())%2; } cout<<result<<" "; } cout<<1; //cerr<<endl; //printSoldier(254); //printSoldier(getSoldiers(254,8,5).second); //printSoldier(254 | soldierMasks[8]); //printSoldier(soldierMasks[8]); return 0; } |