Update 模拟退火算法.c

Author: ls-Brynn

模拟退火算法/模拟退火算法.c

@@ -1 +1,61 @@
-#
+#include<cstring>
+#include<string>
+#include<iostream>
+#include<queue>
+#include<cstdio>
+#include<algorithm>
+#include<map>
+#include<cstdlib>
+#include<cmath>
+#include<vector>
+//#pragma comment(linker, "/STACK:1024000000,1024000000");
+ 
+using namespace std;
+ 
+#define INF 0x3f3f3f3f
+ 
+double y;
+ 
+double getsum(double x)
+{
+    return 6*pow(x,7)+8*pow(x,6)+7*pow(x,3)+5*x*x-y*x;
+}
+ 
+int main()
+{
+    int T;
+    scanf("%d",&T);
+    while(T--)
+    {
+        scanf("%lf",&y);
+        double delte=0.98;
+        double t=100;
+        double x=0;
+        double ans=getsum(x);
+        while(t>1e-8)
+        {
+            int flag=1;
+            while(flag)
+            {
+                flag=0;
+                double temp=x+t;
+                if(temp>=0&&temp<=100&&getsum(temp)<ans&&fabs(ans-getsum(temp))>=1e-8)
+                {
+                    x=temp;
+                    ans=getsum(temp);
+                    flag=1;
+                }
+                temp=x-t;
+                if(temp>=0&&temp<=100&&getsum(temp)<ans&&fabs(ans-getsum(temp))>=1e-8)
+                {
+                    x=temp;
+                    ans=getsum(temp);
+                    flag=1;
+                }
+            }
+            t*=delte;
+        }
+        printf("%.4f\n",ans);
+    }
+    return 0;
+}