結果
問題 | No.1078 I love Matrix Construction |
ユーザー |
|
提出日時 | 2020-06-12 23:27:41 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,679 bytes |
コンパイル時間 | 2,084 ms |
コンパイル使用メモリ | 174,932 KB |
実行使用メモリ | 49,476 KB |
最終ジャッジ日時 | 2024-06-24 06:02:32 |
合計ジャッジ時間 | 8,024 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
other | AC * 16 WA * 6 |
コンパイルメッセージ
main.cpp: In function 'int main2()': main.cpp:83:8: warning: 'b' may be used uninitialized [-Wmaybe-uninitialized] 83 | g[b].push_back(a^1); | ~~~^ main.cpp:66:12: note: 'b' declared here 66 | int a, b; | ^ main.cpp:83:21: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized] 83 | g[b].push_back(a^1); | ~^~ main.cpp:66:9: note: 'a' declared here 66 | int a, b; | ^
ソースコード
#include <bits/stdc++.h>using namespace std;typedef long long ll;#define REP(i,n) for(int i=0,_n=(int)(n);i<_n;++i)#define ALL(v) (v).begin(),(v).end()#define CLR(t,v) memset(t,(v),sizeof(t))template<class T1,class T2>ostream& operator<<(ostream& os,const pair<T1,T2>&a){return os<<"("<<a.first<<","<<a.second<< ")";}template<class T>void pv(T a,T b){for(T i=a;i!=b;++i)cout<<(*i)<<" ";cout<<endl;}template<class T>void chmin(T&a,const T&b){if(a>b)a=b;}template<class T>void chmax(T&a,const T&b){if(a<b)a=b;}ll nextLong() { ll x; scanf("%lld", &x); return x;}const int MAX_V = 500 * 500 * 2 + 10;vector<int> g[MAX_V];vector<int> r[MAX_V];const int MAX_N = 505;int A[MAX_N][MAX_N];int N;int nodeId(int r, int c, int f) {return (r * N + c) * 2 + f;}int sccid[MAX_V];int sccnum;void dfs(int p, vector<int>& order) {if (sccid[p] != 0) return;sccid[p] = 1;for (int i : g[p]) dfs(i, order);order.push_back(p);}void rdfs(int p, int id) {if (sccid[p] != -1) return;sccid[p] = id;for (int i : r[p]) rdfs(i, id);}void scc() {vector<int> order;CLR(sccid, 0);REP(i, N) dfs(i, order);CLR(sccid, -1);sccnum = 0;for (int i = (int)order.size() - 1; i >= 0; i--) if (sccid[order[i]] == -1) {rdfs(order[i], sccnum);sccnum++;}}int main2() {REP(i, MAX_V) g[i].clear();REP(i, MAX_V) r[i].clear();N = nextLong();vector<int> S(N), T(N), U(N);REP(i, N) S[i] = nextLong()-1;REP(i, N) T[i] = nextLong()-1;REP(i, N) U[i] = nextLong();REP(i, N) REP(j, N) {int a, b;if (U[i] == 0) {a = nodeId(S[i], j, 0);b = nodeId(j, T[i], 0);}if (U[i] == 1) {a = nodeId(S[i], j, 1);b = nodeId(j, T[i], 0);}if (U[i] == 2) {a = nodeId(S[i], j, 0);b = nodeId(j, T[i], 1);}if (U[i] == 3) {a = nodeId(S[i], j, 1);b = nodeId(j, T[i], 1);}g[b].push_back(a^1);g[a].push_back(b^1);r[a^1].push_back(b);r[b^1].push_back(a);}scc();// REP(i, N*N) cout << sccid[i * 2] << " "; cout << endl;// REP(i, N*N) cout << sccid[i * 2 + 1] << " "; cout << endl;bool ng = false;REP(i, N*N) {if (sccid[i * 2] != -1 && sccid[i * 2] == sccid[i * 2 + 1]) {ng = true;}}if (ng) {cout << -1 << endl;} else {REP(i, N*N) {int r = i / N;int c = i % N;A[r][c] = (sccid[i * 2 + 1] > sccid[i * 2]) ? 1 : 0;}REP(r, N) {REP(c, N) {if (c) cout << ' ';cout << A[r][c];}cout << '\n';}}return 0;}int main() {#ifdef LOCALfor (;!cin.eof();cin>>ws)#endifmain2();return 0;}