| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 347191 | 2021-01-12T09:58:52 Z | Noran | One-Way Streets (CEOI17_oneway) | C++14 | Compilation error |
0 ms | 0 KB |
using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
Compilation message
oneway.cpp:1:21: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
| ^
oneway.cpp:1:41: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
| ^
oneway.cpp:1:56: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
| ^
oneway.cpp:1:72: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
| ^
oneway.cpp:1:95: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
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oneway.cpp:1:112: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
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oneway.cpp:1:144: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) low[v] = min(low[u], low[v]); } }}void prep(){ for(int j=1;j<mlog;j++) for(int i=1;i<=n;i++) par[i][j] = par[par[i][j-1]][j-1];}int lca(int u,int v){ if(h[u] > h[v]) swap(u, v); for(int i=mlog-1;i >= 0;i--) if(h[par[v][i]] >= h[u]) v = par[v][i]; if(u == v) return v; for(int i=mlog-1;i>=0;i--) { if(par[u][i] != par[v][i]) { u = par[u][i]; v = par[v][i]; } } return par[v][0];}int main(){ FAST; cin >> n >> m; for(int i=1;i<=m;i++) { cin >> a[i] >> b[i]; adj[a[i]].pb({b[i], i}); adj[b[i]].pb({a[i], i}); } for(int i=1;i<=n;i++) if(!mark[i]) dfs(i); prep(); for(int i=1;i<=n;i++) f[i] = i; int p; cin >> p; while(p--) { int u, v; cin >> u >> v; int lpa = lca(u, v); u = get(u); while(h[u] > h[lpa]) { if(dfn[u]) res[parID[u]] = -1; f[u] = par[u][0]; u = get(u); } v = get(v); while(h[v] > h[lpa]) { if(dfn[v]) res[parID[v]] = 1; f[v] = par[v][0]; v = get(v); } } for(int i=1;i<=n;i++) if(dfn[i] && b[parID[i]] != i) res[parID[i]] *= -1; for(int i=1;i<=m;i++) { if(res[i] == 1) cout << "R"; if(res[i] == -1) cout << "L"; if(res[i] == 0) cout << "B"; } return 0;}
| ^
oneway.cpp:1:169: error: stray '#' in program
1 | using namespace std;#define pb push_back#define F first#define S second#define debug(x) cerr<<#x<<" :"<<x<<"\n"#define all(x) x.begin(),x.end()#define pii pair<int,int>#define FAST ios_base::sync_with_stdio(false), cin.tie(), cout.tie();//#define int long longtypedef long long ll;typedef long double ld;const int maxn = 1e5 + 7;const int mod = 1e9 + 7;const int INF = 1e9 + 7;const int mlog = 19;const int SQ = 400;int n, m;int a[maxn], b[maxn];int mark[maxn], low[maxn], h[maxn];bool dfn[maxn];vector<pii> adj[maxn];int par[maxn][mlog];int f[maxn];int parID[maxn];int res[maxn];int cnt = 0;int get(int v) { return (f[v] == v ? v : get(f[v])); }void dfs(int v){ mark[v] = low[v] = ++cnt; for(pii Ed : adj[v]) { int u = Ed.F; int ind = Ed.S; if(!mark[u]) { h[u] = h[v] + 1; par[u][0] = v; parID[u] = ind; dfs(u); low[v] = min(low[u], low[v]); if(low[u] > mark[v]) dfn[u] = 1; } else { if(par[u][0] == v) dfn[u] = 0; if(u != par[v][0]) l