Merge pull request #39 from Coach-Academy/MohamedAmir-Patch-1

c103 practice G3 week 5

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/A - Gravity Flip.cpp

@@ -0,0 +1,17 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int arr[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> arr[i];
+    }
+    sort(arr, arr + n);
+    for (int i = 0; i < n; ++i) {
+        cout << arr[i] << ' ';
+    }
+    cout << endl;
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/B - Currency System in Geraldion.cpp

@@ -0,0 +1,17 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int arr[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> arr[i];
+    }
+    int mn = *min_element(arr, arr + n);
+    if (mn == 1)
+        cout << "-1\n";
+    else
+        cout << 1 << endl;
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/C - Translation.cpp

@@ -0,0 +1,14 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    string s, t;
+    cin >> s >> t;
+    reverse(s.begin(), s.end());
+    if (s == t)
+        cout << "YES\n";
+    else
+        cout << "NO\n";
+}
+//

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/D - Songs Compression.cpp

@@ -0,0 +1,30 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int numOfSongs, spaceOfFlashDrive;
+    cin >> numOfSongs >> spaceOfFlashDrive;
+    int beforeComp[numOfSongs], afterComp[numOfSongs];
+    long long spaceOfMusic = 0;
+    for (int i = 0; i < numOfSongs; ++i) {
+        cin >> beforeComp[i] >> afterComp[i];
+        spaceOfMusic += beforeComp[i];
+    }
+    int gainSpace[numOfSongs];
+    for (int i = 0; i < numOfSongs; ++i) {
+        gainSpace[i] = beforeComp[i] - afterComp[i];
+    }
+    sort(gainSpace, gainSpace + numOfSongs, greater<>());
+    int ans = 0;
+    for (int i = 0; i < numOfSongs and spaceOfMusic > spaceOfFlashDrive; ++i) {
+        spaceOfMusic -= gainSpace[i];
+        ans++;
+    }
+    if (spaceOfMusic > spaceOfFlashDrive)
+        cout << -1 << endl;
+    else
+        cout << ans << endl;
+
+
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/E - Chores.cpp

@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n, k, x;
+    cin >> n >> k >> x;
+    int arr[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> arr[i];
+    }
+    for (int i = n - 1; i >= 0 and k > 0; --i) {
+        arr[i] = x;
+        k--;
+    }
+    int sum = 0;
+    for (int i = 0; i < n; ++i) {
+        sum += arr[i];
+    }
+    cout << sum << endl;
+
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/F - I_love-username.cpp

@@ -0,0 +1,25 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int arr[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> arr[i];
+    }
+    int mn = arr[0], mx = arr[0];
+    int ans = 0;
+    for (int i = 1; i < n; ++i) {
+        if (arr[i] > mx) {
+            ans++;
+            mx = arr[i];
+        }
+        if (arr[i] < mn) {
+            ans++;
+            mn = arr[i];
+        }
+    }
+    cout << ans << endl;
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/G - Puzzles.cpp

@@ -0,0 +1,21 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n, m;
+    cin >> n >> m;
+    int arr[m];
+    for (int i = 0; i < m; ++i) {
+        cin >> arr[i];
+    }
+    sort(arr, arr + m);
+    n--;
+    int mn = 1000000000;
+    for (int i = n; i < m; ++i) {
+        if (arr[i] - arr[i - n] < mn) {
+            mn = arr[i] - arr[i - n];
+        }
+    }
+    cout << mn << endl;
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/H - Is your horseshoe on the other hoof.cpp

@@ -0,0 +1,17 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int arr[4];
+    for (int i = 0; i < 4; ++i) {
+        cin >> arr[i];
+    }
+    sort(arr, arr + 4);
+    int ans = 0;
+    for (int i = 1; i < 4; ++i) {
+        if (arr[i] == arr[i - 1])
+            ans++;
+    }
+    cout << ans << endl;
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/I - Tram.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int people = 0, mx = 0;
+    for (int i = 0; i < n; ++i) {
+        int a, b;
+        cin >> a >> b;
+        people -= a;
+        people += b;
+        if (people > mx)
+            mx = people;
+    }
+    cout << mx << endl;
+
+
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/J - Count Order.cpp

@@ -0,0 +1,52 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int p[n], q[n], permutation[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> p[i];
+    }
+    for (int i = 0; i < n; ++i) {
+        cin >> q[i];
+    }
+    for (int i = 1; i <= n; ++i) {
+        permutation[i - 1] = i;
+    }
+    int a = 0, b = 0;
+    int cnt = 0;
+    do {
+        bool isEqual = true;
+        for (int i = 0; i < n; ++i) {
+            if (p[i] != permutation[i])
+                isEqual = false;
+        }
+        cnt++;
+        if (isEqual) {
+            a = cnt;
+            break;
+        }
+    } while (next_permutation(permutation, permutation + n));
+
+    for (int i = 1; i <= n; ++i) {
+        permutation[i - 1] = i;
+    }
+
+    cnt = 0;
+    do {
+        bool isEqual = true;
+        for (int i = 0; i < n; ++i) {
+            if (q[i] != permutation[i])
+                isEqual = false;
+        }
+        cnt++;
+        if (isEqual) {
+            b = cnt;
+            break;
+        }
+    } while (next_permutation(permutation, permutation + n));
+    cout << abs(a - b) << endl;
+
+}

Level 1/CPU - Standard - L1 - C103/Practice G3/Week 05/K - Arrival of the General.cpp

@@ -0,0 +1,39 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;
+    int arr[n];
+    for (int i = 0; i < n; ++i) {
+        cin >> arr[i];
+    }
+    int mx = arr[0], mxPos = 0;
+    for (int i = 0; i < n; ++i) {
+        if (mx < arr[i]) {
+            mx = arr[i];
+            mxPos = i;
+        }
+    }
+    int ans = 0;
+    while (mxPos > 0) {
+        swap(arr[mxPos], arr[mxPos - 1]);
+        ans++;
+        mxPos--;
+    }
+    int mn = arr[n - 1], mnPos = n - 1;
+    for (int i = n - 1; i >= 0; --i) {
+        if (mn > arr[i]) {
+            mn = arr[i];
+            mnPos = i;
+        }
+    }
+    while (mnPos < n - 1) {
+        swap(arr[mnPos], arr[mnPos + 1]);
+        ans++;
+        mnPos++;
+    }
+    cout << ans << endl;
+
+}