c++ code solution for array recovery question

Author: AsesinoAKg

.cph/.arrayrecovery.cpp_7b3b9871d14eed2f4ce9e9619c6c4e79.prob

@@ -0,0 +1 @@
+{"name":"Local: arrayrecovery","url":"c:\\Users\\CC\\Desktop\\git-anurag\\git-akpro\\leetcode-solutions-1\\arrayrecovery.cpp","tests":[{"id":1666365548858,"input":"","output":""}],"interactive":false,"memoryLimit":1024,"timeLimit":3000,"srcPath":"c:\\Users\\CC\\Desktop\\git-anurag\\git-akpro\\leetcode-solutions-1\\arrayrecovery.cpp","group":"local","local":true}

arrayrecovery.cpp

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+// shree ganeshay namah
+#include <bits/stdc++.h>
+using namespace std;
+#define ll long long
+#define pi (3.141592653589)
+#define mod 1000000007
+#define ll long long
+#define float double
+#define pb push_back
+#define mp make_pair
+#define ff first
+#define ss second
+#define all(c) c.begin(), c.end()
+#define min3(a, b, c) min(c, min(a, b))
+#define min4(a, b, c, d) min(d, min(c, min(a, b)))
+#define rrep(i, n) for (int i = n - 1; i >= 0; i--)
+#define rep(i, n) for (int i = 0; i < n; i++)
+#define fast ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
+ 
+int main()
+{
+    int t;
+    cin >> t;
+    while (t--)
+    {
+        int n;
+        cin >> n;
+        int c = 0;
+        vector<int> a(n);
+        vector<int> b(n);
+        int flag = 0;
+        for (int i = 0; i < n; i++)
+        {
+            cin >> a[i];
+        }
+        b[0] = a[0];
+        for (int i = 1; i < n; i++)
+        {
+            if(a[i]==0){
+                b[i] = b[i-1] + a[i];
+                continue;
+            }
+            if (b[i-1] - a[i] >= 0)
+            {
+                flag = 1;
+                break;
+            }
+            else{
+                b[i] = a[i] + b[i - 1];
+            }
+        }
+        for (int i = 0; i < n; i++)
+        {
+            if (flag == 0)
+            {
+                cout << b[i] << " ";
+            }
+            else{
+                cout << "-1";
+                break;
+            }
+        }
+        cout<<endl;
+    }
+    return 0;
+}