天天寫演算法之Assignments
阿新 • • 發佈：2019-01-27
我正在做凸包問題，結果忽然出現了一個貪心-。-|||一開始沒都明白題目，以為會有多餘的學生，想到了揹包，emmm，後來發現0.0
驚不驚喜？意不意外？#include <cstring> #include <cstdio> #include <algorithm> #include <cstring> #define MAX 1007 using namespace std; int n,t; int a[MAX],b[MAX]; int cmp ( int a , int b ) { return a > b; } int main ( ) { while ( ~scanf ( "%d%d" , &n , &t ) ) { for ( int i = 0 ; i < n ; i++ ) scanf ( "%d" , &a[i] ); for ( int i = 0 ; i < n ; i++ ) scanf ( "%d" , &b[i] ); sort ( a , a+n ); sort ( b , b+n , cmp ); int sum = 0; for ( int i = 0 ; i < n ; i++ ) if ( a[i] + b[i] > t ) sum += a[i] + b[i] - t; printf ( "%d\n" , sum ); } }