done

Author: Hard-Coder05

CC1.cpp

@@ -1,3 +1,10 @@
+/*
+Problem Link: 
+#############################################
+Author: Siddharth Mishra
+GitHub: https://github.com/Hard-Coder05
+#############################################
+*/
 #include <bits/stdc++.h>
 #define endl "\n"
 #define max(a, b) (a < b ? b : a) 
@@ -9,43 +16,17 @@ using namespace std;
 using i64 = long long;
 using u64 = unsigned long long;
 using u32 = unsigned;
-const int d=1000000;
-vector<int> v;
-int arr[d+5];
-bool prime[d + 5];
-void calc(int n)
-{
-    
-    memset(prime, true, sizeof(prime));
- 
-    for (int p = 2; p * p <= n; p++)
-    {
-        if (prime[p] == true) 
-        {
-            for (int i = p * p; i <= n; i += p)
-                prime[i] = false;
-        }
-    }
-    for(int i=5;i<=d;i++){
-		arr[i]=arr[i-1];
-		if(prime[i]&&prime[i-2]){
-			arr[i]++;
-		}
-	}
-}
 int main() {
 	FIO;
 #ifndef ONLINE_JUDGE
 	freopen("input.txt", "r", stdin);
 	freopen("output.txt", "w", stdout);
 #endif
-calc(d);
 	int tc;
 	cin >> tc;
 	while (tc--) {
 		int n;
-		cin>>n;
-		cout<<arr[n]<<"\n";
-		
+		cin >> n;
+		cout<<n;
 	}
-}
+}

CF1.cpp

@@ -1,4 +1,4 @@
- /*
+/*
 Problem Link: 
 #############################################
 Author: Siddharth Mishra

CF2.cpp

@@ -16,22 +16,6 @@ using namespace std;
 using i64 = long long;
 using u64 = unsigned long long;
 using u32 = unsigned;
-vector<int> v;
-void calc(int n){
-int i, j, flag;
-		for (i = 2; i <= n; i++) {
-        flag = 1;
- 
-        for (j = 2; j <= i / 2; ++j) {
-            if (i % j == 0) {
-                flag = 0;
-                break;
-            }
-        }
-        if (flag == 1)
-            v.push_back(i);
-    }
-}
 int main() {
 	FIO;
 #ifndef ONLINE_JUDGE
@@ -40,24 +24,9 @@ int main() {
 #endif
 	int tc;
 	cin >> tc;
-	vector<int> t;
-	int max=0;
 	while (tc--) {
 		int n;
-		cin>>n;
-		if(n>max)
-		max=n;
-		t.push_back(n);
-	}
-	calc(max);
-	for(auto i:t){
-		int count=0;
-		for(int a=1;a<v.size();a++){
-		if(v[a]>i)
-		break;
-		if(v[a]-v[a-1]==2)
-		count++;
+		cin >> n;
+		cout<<n;
 	}
-	cout<<count<<endl;
-	}
-	}
+}

CF3.cpp

@@ -1,3 +0,0 @@
-2
-11
-13

input.txt

@@ -1,2 +0,0 @@
-2
-3