c++ - User is entering 10 numbers, find max negative value and its index/position -

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user entering 10 numbers, find max negative value , index/position.

ps: must use "for". plz -_-"

this code:

#include <iostream>  using namespace std;  int main() {      double value, maxvalue, index;      cin >> value;     maxvalue = value;     index = 1;      (int = 2; <= 10; i++) {         cin >> value;          if (value > maxvalue&&value<0) {             maxvalue = value;                 index = i;         }      }     cout << "max value = " << maxvalue << " index = " << index << endl;   }

change line 

if (value < maxvalue && value<0)

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