【BZOJ】3850: ZCC Loves Codefires(300T就这样献给了水题TAT)
http://www.lydsy.com/JudgeOnline/problem.php?id=3850
题意:类似国王游戏....无意义..
#include <cstdio> #include <cstring> #include <cmath> #include <string> #include <iostream> #include <algorithm> #include <queue> #include <set> #include <map> #include <sstream> using namespace std; typedef long long ll; #define pb push_back #define rep(i, n) for(int i=0; i<(n); ++i) #define for1(i,a,n) for(int i=(a);i<=(n);++i) #define for2(i,a,n) for(int i=(a);i<(n);++i) #define for3(i,a,n) for(int i=(a);i>=(n);--i) #define for4(i,a,n) for(int i=(a);i>(n);--i) #define CC(i,a) memset(i,a,sizeof(i)) #define read(a) a=getint() #define print(a) printf("%d", a) #define dbg(x) cout << (#x) << " = " << (x) << endl #define error(x) (!(x)?puts("error"):0) #define rdm(x, i) for(int i=ihead[x]; i; i=e[i].next) inline int getint() { static int r, k; r=0,k=1; static char c; c=getchar(); for(; c<'0'||c>'9'; c=getchar()) if(c=='-') k=-1; for(; c>='0'&&c<='9'; c=getchar()) r=r*10+c-'0'; return k*r; } const int N=1e5+10; struct dat { int x, y; }a[N]; ll ans; int n; bool cmp(const dat &a, const dat &b) { return a.y*a.x+b.y*(a.x+b.x)<b.y*b.x+a.y*(a.x+b.x); } int main() { read(n); rep(i, n) read(a[i].x); rep(i, n) read(a[i].y); sort(a, a+n, cmp); ll sum=0; rep(i, n) sum+=a[i].x, ans+=sum*a[i].y; cout << ans; return 0; }
300T就这样献给了这种水题TAT..
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