Submission #1107578

#TimeUsernameProblemLanguageResultExecution timeMemory
1107578modwweDesignated Cities (JOI19_designated_cities)C++17
23 / 100
18 ms63824 KiB
#pragma GCC optimize("Ofast,unroll-loops") //#pragma GCC optimize("conserve-stack") #include<bits/stdc++.h> #define int long long #define ll long long #define down cout<<'\n'; #define debug cout<<" cucuucucuuu",down #define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0); #define modwwe int t;cin>>t; while(t--) #define bit(i,j) (i>>j&1) #define sobit(a) __builtin_popcountll(a) #define task "test" #define fin(x) freopen(x".inp","r",stdin) #define fou(x) freopen(x".ans","w",stdout) #define pb push_back #define mask(i) (1<<i) #define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms"; using namespace std; #define getchar_unlocked getchar inline int scan() { char c = getchar_unlocked(); int x = 0; while (c < '0' || c > '9') { c = getchar_unlocked(); } while (c >= '0' && c <= '9') { x = (x << 1) + (x << 3) + c - '0'; c = getchar_unlocked(); } return x; }; void phongbeo(); const int inf = 1e18; const int mod2 = -1e9+7; const int mod1 = 998244353; const int base=67; int add(int x,int y) { if(x+y>=mod2) x-=mod2; if(x+y<0) x+=mod2; return x+y; } struct icd { int c,d; }; struct ib { int a; int b; }; struct ic { int a, b, c; }; struct id{ int a,b,c,d; }; struct ie { int a, b, c, d, e; }; int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, mid, l2, r2, center; int i, s10, s12,k1,k2,k3,s11,limit,w,l,r,last,root,cost; int kk; int el = 19; main() { if(fopen(task".inp","r")) { fin(task); fou(task); } NHP /// cin>>s1; // modwwe phongbeo(),down // checktime } namespace sub4 {int dp[2001][2001][2]; int par[2001]; int sz[2001]; id a[2001]; icd c[2001]; vector<int> v[2001]; void dfs(int x,int y) { par[x]=y; for(auto f:v[x]) if(f!=y) dfs(f,x); } void dfs2(int x,int y) { dp[x][0][0]=0; sz[x]=0; for(auto f:v[x]) if(f!=y) { dfs2(f,x); for(int i=0;i<=sz[x];i++) for(int j=0;j<2;j++) dp[x][i][j]+=dp[f][0][0]+c[f].c; /// ko add them con gi ca for(int i=0;i<=sz[f];i++) dp[x][i][1]=min(dp[x][i][1],dp[x][0][0]-dp[f][0][0]-c[f].c+dp[f][i][1]+c[f].d);///end at son of x no add in x ///knapsex for(int i=sz[x];i>=0;i--) for(int j=0;j<=sz[f];j++){ dp[x][i+j][0]=min(dp[x][i+j][0],dp[x][i][0]-dp[f][0][0]-c[f].c+dp[f][j][0]+(j==0)*c[f].c); if(i>0&&j>0) dp[x][i+j][1]=min(dp[x][i+j][1],dp[x][i][0]-dp[f][0][0]-c[f].c+dp[f][j][0]); } sz[x]+=sz[f]; } /// add point at x for(int i=sz[x];i>=0;--i) dp[x][i+1][1]=min(dp[x][i+1][1],dp[x][i][0]), dp[x][i+1][0]=min(dp[x][i+1][0],dp[x][i][0]); sz[x]++; } void solve() { for(int i=1;i<n;i++) cin>>a[i].a>>a[i].b>>a[i].c>>a[i].d, v[a[i].a].pb(a[i].b), v[a[i].b].pb(a[i].a); dfs(1,0); for(int i=1;i<=n;i++) for(int j=1;j<=n;j++) for(int f=0;f<2;f++) dp[i][j][f]=inf; for(int i=1;i<n;i++) { if(par[a[i].a]==a[i].b) swap(a[i].c,a[i].d),swap(a[i].a,a[i].b); c[a[i].b]={a[i].c,a[i].d}; } dfs2(1,0); /// if(j==0) +.c /// if(j==end)+.d cin>>m; for(int i=1;i<=m;i++) { cin>>l; cout<<dp[1][l][1],down } } } void phongbeo() { cin>>n; if(n<=2000)sub4::solve(); else { cout<<0; return; } }

Compilation message (stderr)

designated_cities.cpp:74:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   74 | main()
      | ^~~~
designated_cities.cpp: In function 'void sub4::dfs2(long long int, long long int)':
designated_cities.cpp:106:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  106 |         for(auto f:v[x])
      |         ^~~
designated_cities.cpp:126:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  126 |             for(int i=sz[x];i>=0;--i)
      |             ^~~
designated_cities.cpp: In function 'void sub4::solve()':
designated_cities.cpp:134:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  134 |   for(int i=1;i<n;i++)
      |   ^~~
designated_cities.cpp:138:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  138 |      dfs(1,0);
      |      ^~~
designated_cities.cpp:145:10: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  145 |          if(par[a[i].a]==a[i].b)
      |          ^~
designated_cities.cpp:147:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
  147 |             c[a[i].b]={a[i].c,a[i].d};
      |             ^
designated_cities.cpp: In function 'int main()':
designated_cities.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
designated_cities.cpp:78:9: note: in expansion of macro 'fin'
   78 |         fin(task);
      |         ^~~
designated_cities.cpp:14:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 | #define fou(x) freopen(x".ans","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
designated_cities.cpp:79:9: note: in expansion of macro 'fou'
   79 |         fou(task);
      |         ^~~
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