From 3d2f75923401460e4c8e8b56e4a24b5a2e065592 Mon Sep 17 00:00:00 2001
From: Omar Magdy <omar.professional8777@gmail.com>
Date: Sun, 29 May 2022 01:58:31 +0200
Subject: Solved a few problems on codechef

---
 codechef/chefAndStockPrices.cpp        | 16 ++++++++++++++++
 codechef/distinctPairSums.cpp          | 16 ++++++++++++++++
 codechef/maximumLengthEvenSubarray.cpp | 27 +++++++++++++++++++++++++++
 codechef/tomAndJerry.cpp               | 22 ++++++++++++++++++++++
 codechef/weightBalance.cpp             | 21 +++++++++++++++++++++
 5 files changed, 102 insertions(+)
 create mode 100644 codechef/chefAndStockPrices.cpp
 create mode 100644 codechef/distinctPairSums.cpp
 create mode 100644 codechef/maximumLengthEvenSubarray.cpp
 create mode 100644 codechef/tomAndJerry.cpp
 create mode 100644 codechef/weightBalance.cpp

(limited to 'codechef')

diff --git a/codechef/chefAndStockPrices.cpp b/codechef/chefAndStockPrices.cpp
new file mode 100644
index 0000000..0954812
--- /dev/null
+++ b/codechef/chefAndStockPrices.cpp
@@ -0,0 +1,16 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  int tt;
+  cin >> tt;
+  while (tt--) {
+    int s, a, b, c;
+    cin >> s >> a >> b >> c;
+    float price = s + (c * s) / 100.0;
+    cout << ((price >= a && price <= b) ? "Yes" : "No") << '\n';
+  }
+}
diff --git a/codechef/distinctPairSums.cpp b/codechef/distinctPairSums.cpp
new file mode 100644
index 0000000..5726bb4
--- /dev/null
+++ b/codechef/distinctPairSums.cpp
@@ -0,0 +1,16 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  int tt;
+  cin >> tt;
+  while (tt--) {
+    int l, r;
+    cin >> l >> r;
+    int foo = abs(r - l) + 1;
+    cout << (l == r ? 1 : (foo * (foo + 1)) / 2) << '\n';
+  }
+}
diff --git a/codechef/maximumLengthEvenSubarray.cpp b/codechef/maximumLengthEvenSubarray.cpp
new file mode 100644
index 0000000..2cbd52b
--- /dev/null
+++ b/codechef/maximumLengthEvenSubarray.cpp
@@ -0,0 +1,27 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int sum(int x) {
+  int res = 0;
+  for(int i = 1; i <= x; i++) {
+    res+=i;
+  }
+  return res;
+}
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+	int tt;
+	cin >> tt;
+	while(tt--){
+    int n;
+    cin >> n;
+    if(sum(n) % 2 == 0) {
+      cout << n << '\n';
+    } else {
+      cout << n - 1 << '\n';
+    }
+	}
+}
diff --git a/codechef/tomAndJerry.cpp b/codechef/tomAndJerry.cpp
new file mode 100644
index 0000000..5305bb4
--- /dev/null
+++ b/codechef/tomAndJerry.cpp
@@ -0,0 +1,22 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+	int tt;
+	cin >> tt;
+	while(tt--){
+    int a, b, c, d, k;
+    cin >> a >> b >> c >> d >> k;
+    int d1 = abs(a - c);
+    int d2 = abs(b - d);
+    if(d1 + d2 <= k && (k - (d1 + d2)) % 2 == 0) {
+      cout << "YES" << '\n';
+    } else {
+      cout << "NO" << '\n';
+    }
+
+	}
+}
diff --git a/codechef/weightBalance.cpp b/codechef/weightBalance.cpp
new file mode 100644
index 0000000..bb03054
--- /dev/null
+++ b/codechef/weightBalance.cpp
@@ -0,0 +1,21 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+	int tt;
+	cin >> tt;
+	while(tt--){
+    int w1, w2, x1, x2, m;
+    cin >> w1 >> w2 >> x1 >> x2 >> m;
+    int weight = w2 - w1;
+    if(weight >= x1 * m && weight <= x2 * m) {
+      cout << 1 << '\n';
+    } else {
+        cout << 0 << '\n';
+      }
+
+	}
+}
-- 
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