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View Compilation Error

0_0_38915642_11103.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
    1 | #include
      |         ^
0_0_38915642_11103.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
    2 | #include
      |         ^
0_0_38915642_11103.cpp: In function 'int main()':
0_0_38915642_11103.cpp:9:7: error: 'scanf' was not declared in this scope
    9 | while(scanf("%lf",&r)!=EOF){
      |       ^~~~~
0_0_38915642_11103.cpp:9:24: error: 'EOF' was not declared in this scope
    9 | while(scanf("%lf",&r)!=EOF){
      |                        ^~~
0_0_38915642_11103.cpp:5:1: note: 'EOF' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
    4 | #include <math.h>
  +++ |+#include <cstdio>
    5 | using namespace std;
0_0_38915642_11103.cpp:11:5: error: 'printf' was not declared in this scope
   11 |     printf("%.3f\n",v);
      |     ^~~~~~
0_0_38915642_11103.cpp:11:5: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?


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