传送门
1 5 3 7 5 10 3 2 4 3 1 100 1 2 2 3 1 4
10
题意懒得说了，中文题啊
做法：01背包 01背包 01背包啊，dfs判连接啊
//china no.1 #pragma comment(linker, "/STACK:1024000000,1024000000") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define pi acos(-1) #define s_1(x) scanf("%d",&x) #define s_2(x,y) scanf("%d%d",&x,&y) #define s_3(x,y,z) scanf("%d%d%d",&x,&y,&z) #define s_4(x,y,z,X) scanf("%d%d%d%d",&x,&y,&z,&X) #define S_1(x) scan_d(x) #define S_2(x,y) scan_d(x),scan_d(y) #define S_3(x,y,z) scan_d(x),scan_d(y),scan_d(z) #define PI acos(-1) #define endl '\n' #define srand() srand(time(0)); #define me(x,y) memset(x,y,sizeof(x)); #define foreach(it,a) for(__typeof((a).begin()) it=(a).begin();it!=(a).end();it++) #define close() ios::sync_with_stdio(0); cin.tie(0); #define FOR(x,n,i) for(int i=x;i<=n;i++) #define FOr(x,n,i) for(int i=x;i=x;i--) #define fOr(n,x,i) for(int i=n;i>x;i--) #define W while #define sgn(x) ((x) < 0 ? -1 : (x) > 0) #define bug printf("***********\n"); #define db double #define ll long long #define mp make_pair #define pb push_back typedef long long LL; const int INF=0x3f3f3f3f; const LL LINF=0x3f3f3f3f3f3f3f3fLL; const int dx[]={-1,0,1,0,1,-1,-1,1}; const int dy[]={0,1,0,-1,-1,1,-1,1}; const int maxn=1e4+10; const int maxx=200005; const double EPS=1e-8; const double eps=1e-8; const int mod=1e9+7; templateinline T min(T a,T b,T c) { return min(min(a,b),c);} templateinline T max(T a,T b,T c) { return max(max(a,b),c);} templateinline T min(T a,T b,T c,T d) { return min(min(a,b),min(c,d));} templateinline T max(T a,T b,T c,T d) { return max(max(a,b),max(c,d));} template inline bool scan_d(T &ret){char c;int sgn;if (c = getchar(), c == EOF){return 0;} while (c != '-' && (c < '0' || c > '9')){c = getchar();}sgn = (c == '-') ? -1 : 1;ret = (c == '-') ? 0 : (c - '0'); while (c = getchar(), c >= '0' && c <= '9'){ret = ret * 10 + (c - '0');}ret *= sgn;return 1;} inline bool scan_lf(double &num){char in;double Dec=0.1;bool IsN=false,IsD=false;in=getchar();if(in==EOF) return false; while(in!='-'&&in!='.'&&(in<'0'||in>'9'))in=getchar();if(in=='-'){IsN=true;num=0;}else if(in=='.'){IsD=true;num=0;} else num=in-'0';if(!IsD){while(in=getchar(),in>='0'&&in<='9'){num*=10;num+=in-'0';}} if(in!='.'){if(IsN) num=-num;return true;}else{while(in=getchar(),in>='0'&&in<='9'){num+=Dec*(in-'0');Dec*=0.1;}} if(IsN) num=-num;return true;} void Out(LL a){if(a < 0) { putchar('-'); a = -a; }if(a >= 10) Out(a / 10);putchar(a % 10 + '0');} void print(LL a){ Out(a),puts("");} //freopen( "in.txt" , "r" , stdin ); //freopen( "data.txt" , "w" , stdout ); //cerr << "run time is " << clock() << endl; int t; int n,m,c; int v[maxn],dp[maxn],w[maxn]; vectorG[maxn]; bool vis[maxn]; void dfs(int x) { if(vis[x]) return ; vis[x]=1; for(int i=0;i=v[i];j--) dp[j]=max(dp[j],dp[j-v[i]]+w[i]); } print(dp[c]); } }
