Update 1104. Sum of Number Segments (20).cpp

liuchuo · Jun 18, 2020 · 2984d78 · 2984d78
1 parent 6de3461
commit 2984d78
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/AdvancedLevel_C++/1104. Sum of Number Segments (20).cpp b/AdvancedLevel_C++/1104. Sum of Number Segments (20).cpp
@@ -3,11 +3,12 @@ using namespace std;
 int main() {
     int n;
     cin >> n;
-    double sum = 0.0, temp;
+    long long sum = 0;
+    double temp;
     for (int i = 1; i <= n; i++) { 
         cin >> temp;
-        sum = sum + temp * i * (n - i + 1);
+        sum += (long long)(temp * 1000) * i * (n - i + 1);
     }
-    printf("%.2f", sum);
+    printf("%.2f", sum / 1000.0);
     return 0;
 }