1 files changed, 64 insertions, 0 deletions
diff --git a/semestr-4/sieci/warsztaty8/mie1.cpp b/semestr-4/sieci/warsztaty8/mie1.cpp
new file mode 100644
index 0000000..f7eef7e
--- /dev/null
+++ b/semestr-4/sieci/warsztaty8/mie1.cpp
@@ -0,0 +1,64 @@
+#include <cstdio>
+#include <algorithm>
+#include <cmath>
+using namespace std;
+
+#define EPS 0.000001
+
+int main() {
+	int numLiquids, reqCon, liquid[101];
+	double sumSubst=0, sumLiquid=0, actCon;
+
+	fill(liquid,liquid+101,0);
+
+	scanf("%d%d",&numLiquids,&reqCon);
+
+	for (int i=0;i<numLiquids;i++) {
+		int con, amount;
+
+		scanf("%d%d",&con,&amount);
+
+		liquid[con]+=amount;
+		sumSubst+=(double)(amount*con)/100;
+		sumLiquid+=(double)amount;
+	}
+
+	if (sumLiquid==0) {
+		printf("0.000\n");
+		return 0;
+	}
+
+	actCon=(sumSubst/sumLiquid)*100;
+
+	for (int i=0;i<=100;i++) {
+		if ((actCon<(double)reqCon)&&(liquid[i]>0)) {
+			double perc=(double)i/100, toSub=(double)((double)reqCon*sumLiquid-100*sumSubst)/((double)reqCon-(double)100*perc);
+			
+			toSub=min(toSub,(double)liquid[i]);
+
+			sumLiquid-=toSub;
+			sumSubst-=(toSub*i)/100;
+		}
+		if ((actCon>(double)reqCon)&&(liquid[100-i]>0)) {
+			double perc=(double)(100-i)/100, toSub=(double)((double)reqCon*sumLiquid-100*sumSubst)/((double)reqCon-(double)100*perc);
+
+			toSub=min(toSub,(double)liquid[100-i]);
+
+			sumLiquid-=toSub;
+			sumSubst-=(toSub*(100-i))/100;
+		}
+		
+		if (sumLiquid==0) {
+			printf("0.000\n");
+			return 0;
+		}
+		actCon=(sumSubst/sumLiquid)*100;
+
+		if (fabs((double)reqCon-actCon)<EPS)
+			break;
+	}
+	
+	printf("%.3lf\n",sumLiquid);
+
+	return 0;
+}