Update and rename 8.cpp to 1671 Shortest Routes I.cpp

just standard dijkastra algorithms

Author: manitajay

cses graph/8.cpp cses graph/1671 Shortest Routes I.cppcses graph/8.cpp renamed to cses graph/1671 Shortest Routes I.cpp

@@ -5,6 +5,8 @@
 // give me some sunshine, give me some rain, give me another chance to grow up once again....
 
 // sab moh maya hai....
+
+// just standard dijkastra algorithms
 
 #include <bits/stdc++.h>
 using namespace std;