Create cco08p5.cpp

Author: IvanIsCoding

DMOJ/cco08p5.cpp

@@ -0,0 +1,34 @@
+#include <bits/stdc++.h>
+using namespace std;
+int N,K[101],C[101],tot;
+int main(){
+	scanf("%d",&N);
+	for(int i=1;i<=N;i++){
+		scanf("%d %d",&K[i],&C[i]);
+		tot += K[i]*C[i];
+	}
+	bitset<10000001> BS;
+	BS.set(0);
+	for(int i=1;i<=N;i++){
+		int copia = K[i];
+		vector<int> pot;
+		for(int j = 0;(1 << j) <= K[i];j++){
+			if(copia - (1 << j) > 0){
+				pot.push_back((1 << j));
+				copia -= (1 << j);
+			}
+		}
+		pot.push_back(copia);
+		for(int j : pot){
+			BS |= BS << (C[i]*j);
+		}
+	}
+	int best = tot;
+	for(int v = 0;v<=tot;v++){
+		if(BS[v] == 1){
+			best = min(best, abs(tot - 2*v) );
+		}
+	}
+	printf("%d\n",best);
+	return 0;
+}