結果
問題 | No.1898 Battle and Exchange |
ユーザー | woodywoody |
提出日時 | 2022-06-17 08:19:52 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 710 ms / 5,000 ms |
コード長 | 4,312 bytes |
コンパイル時間 | 4,432 ms |
コンパイル使用メモリ | 239,568 KB |
実行使用メモリ | 19,452 KB |
最終ジャッジ日時 | 2024-10-08 03:38:09 |
合計ジャッジ時間 | 20,976 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 58 |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:154:9: warning: 'ret' may be used uninitialized [-Wmaybe-uninitialized] 154 | if (check(mid)) u = mid; | ^~ main.cpp:93:14: note: 'ret' was declared here 93 | bool ret; | ^~~
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> #define rep(i,b) for(int i=0;i<b;i++) #define rrep(i,b) for(int i=b-1;i>=0;i--) #define rep1(i,b) for(int i=1;i<b;i++) #define repx(i,x,b) for(int i=x;i<b;i++) #define fore(i,a) for(auto i:a) #define fore1(i,a) for(auto &i:a) #define rng(x) (x).begin(), (x).end() #define rrng(x) (x).rbegin(), (x).rend() #define sz(x) ((int)(x).size()) #define pb push_back #define fi first #define se second using namespace std; using namespace atcoder; using ll = long long; template<typename T> using mpq = priority_queue<T, vector<T>, greater<T>>; template<typename T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<typename T> bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } template<typename T> ll sumv(const vector<T>&a){ll res(0);for(auto&&x:a)res+=x;return res;} bool yn(bool a) { if(a) {cout << "Yes" << endl; return 1;} else {cout << "No" << endl; return 0;}} #define dame { cout << "No" << endl; return 0;} #define dame1 { cout << -1 << endl; return 0;} #define test(x) cout << "test" << x << endl; #define deb(x,y) cout << x << " " << y << endl; #define deb3(x,y,z) cout << x << " " << y << " " << z << endl; #define deb4(x,y,z,x2) cout << x << " " << y << " " << z << " " << x2 << endl; #define out cout << ans << endl; #define outv fore(yans , ans) cout << yans << "\n"; #define show(x) cerr<<#x<<" = "<<x<<endl; #define showv(v) {fore(vy , v) {cout << vy << " ";} cout << endl;} #define showv2(v) fore(vy , v) cout << vy << "\n"; using pll = pair<ll,ll>; using pil = pair<int,ll>; using pli = pair<ll,int>; using pii = pair<int,int>; using tp = tuple<int ,int ,int>; using vi = vector<int>; using vl = vector<ll>; using vs = vector<string>; using vb = vector<bool>; using vpii = vector<pii>; using vpli = vector<pli>; using vpll = vector<pll>; using vpil = vector<pil>; using vvi = vector<vector<int>>; using vvl = vector<vector<ll>>; using vvs = vector<vector<string>>; using vvb = vector<vector<bool>>; using vvpii = vector<vector<pii>>; using vvpli = vector<vector<pli>>; using vvpll = vector<vpll>; using vvpil = vector<vpil>; using mint = modint998244353; using vm = vector<mint>; using vvm = vector<vector<mint>>; vector<int> dx={1,0,-1,0,1,1,-1,-1},dy={0,1,0,-1,1,-1,1,-1}; ll gcd(ll a, ll b) { return a?gcd(b%a,a):b;} ll lcm(ll a, ll b) { return a/gcd(a,b)*b;} const double eps = 1e-10; const ll LINF = 1001002003004005006ll; const int INF = 1001001001; int main(){ int n,m; cin>>n>>m; vvi e(n); rep(i,m){ int a,b; cin>>a>>b; a--; b--; e[a].pb(b); e[b].pb(a); } vvl abc(n,vl(3)); vl atmp(n),btmp(n),ctmp(n); vl nabc(3); rep(i,n){ cin>>abc[i][0]>>abc[i][1]>>abc[i][2]; atmp[i] = abc[i][0]; btmp[i] = abc[i][1]; ctmp[i] = abc[i][2]; } ll l = 0,u = 3e8+1; auto check = [&](ll x) -> bool{ bool ret; if (x <= 2) return false; rep(i,n) abc[i][0] = atmp[i]; rep(i,n) abc[i][1] = btmp[i]; rep(i,n) abc[i][2] = ctmp[i]; nabc[0] = x - 2; nabc[1] = 1; nabc[2] = 1; mpq<pli> q; vb flg(n); q.push({abc[0][0] + abc[0][1] + abc[0][2] , 0}); while(!q.empty()){ pli p = q.top(); q.pop(); ll sum = 0; rep(i,3) sum += nabc[i]; if (sum <= p.fi){ ret = false; break; } if (p.se == n-1){ ret = true; break; } ll mx = 0; int mxi; ll mn = LINF; int mni; rep(i,3) if (chmax(mx , abc[p.se][i])) mxi = i; rep(i,3) if (chmin(mn , nabc[i])) mni = i; if (mx > mn){ swap(abc[p.se][mxi] , nabc[mni]); flg[p.se] = false; } fore(y , e[p.se]){ if (!flg[y]){ q.push({abc[y][0] + abc[y][1] + abc[y][2] , y}); flg[y] = true; } } } return ret; }; while(u - l > 1){ ll mid = (u+l)/2; if (check(mid)) u = mid; else l = mid; } deb3(u-2 , 1 , 1); return 0; }