Solve problems 32B, 69A, 263A, 266B and 271A from codeforces

Author: AliOsm

CodeForces/263A. Beautiful Matrix.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+#include <cmath>
+
+using namespace std;
+
+int board[5][5];
+
+int main() {
+    int x, y;
+    
+    for(int i = 0; i < 5; i++)
+        for(int j = 0; j < 5; j++) {
+            cin >> board[i][j];
+            
+            if(board[i][j] == 1) {
+                x = i;
+                y = j;
+            }
+        }
+    
+    cout << abs(2 - x) + abs(2 - y) << endl;
+
+    return 0;
+}

CodeForces/266B. Queue at the School.cpp

@@ -0,0 +1,23 @@
+#include <iostream>
+#include <string>
+#include <memory.h>
+
+using namespace std;
+
+int main() {
+    int n, t;
+    string s;
+    cin >> n >> t >> s;
+    
+    while(t--)
+        for(int i = n - 1; i >= 0; i--)
+            if(s[i] == 'G' && i-1 >= 0 && s[i-1] == 'B') {
+                s[i] = 'B';
+                s[i-1] = 'G';
+                i--;
+            }
+    
+    cout << s << endl;
+
+    return 0;
+}

CodeForces/271A. Beautiful Year.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+#include <memory.h>
+
+using namespace std;
+
+int freq[10], r;
+
+bool distinct(int n) {
+    memset(freq, 0, sizeof freq);
+    r = 0;
+    
+    while(n) {
+        freq[n % 10]++;
+        n /= 10;
+    }
+    
+    for(int i = 0; i < 10; i++)
+        if(freq[i])
+            r++;
+    
+    if(r == 4)
+        return true;
+    
+    return false;
+}
+
+int main() {
+    int n;
+    cin >> n;
+    n++;
+    
+    while(!distinct(n))
+        n++;
+    
+    cout << n << endl;
+    
+    return 0;
+}

CodeForces/32B. Borze.cpp

@@ -0,0 +1,22 @@
+#include <iostream>
+#include <string>
+
+using namespace std;
+
+int main() {
+    string s;
+    cin >> s;
+    
+    for(int i = 0; i < s.size(); i++) 
+        if(s[i] == '.') cout << '0';
+        else if(i+1 < s.size() && s[i] == '-' && s[i+1] == '.') {
+            cout << '1';
+            i++;
+        } else if(i+1 < s.size() && s[i] == '-' && s[i+1] == '-') {
+            cout << '2';
+            i++;
+        }
+    
+    cout << endl;
+    return 0;
+}

CodeForces/69A. Young Physicist.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+
+using namespace std;
+
+int main() {
+    int n, a, b, c, r1, r2, r3;
+    r1 = r2 = r3 = 0;
+    
+    cin >> n;
+    n--;
+    
+    cin >> r1 >> r2 >> r3;
+    
+    while(n--) {
+        cin >> a >> b >> c;
+        
+        r1 += a;
+        r2 += b;
+        r3 += c;
+    }
+    
+    if(!r1 && !r2 && !r3) cout << "YES" << endl;
+    else cout << "NO" << endl;
+
+    return 0;
+}

CodeForces/README.md

@@ -10,6 +10,7 @@
 - [25A. IQ test](http://codeforces.com/problemset/problem/25/A)
 - [25B. Phone numbers](http://codeforces.com/problemset/problem/25/B)
 - [26A. Almost Prime](http://codeforces.com/problemset/problem/26/A)
+- [32B. Borze](https://repl.it/languages/cpp11)
 - [35C. Fire Again](http://codeforces.com/contest/35/problem/C)
 - [35D. Animals](http://codeforces.com/contest/35/problem/D)
 - [41A. Translation](http://codeforces.com/problemset/problem/41/A)
@@ -18,6 +19,7 @@
 - [56D. Changing a String](http://codeforces.com/contest/56/problem/D)
 - [58A. Chat room](http://codeforces.com/problemset/problem/58/A)
 - [59A. Word](http://codeforces.com/problemset/problem/59/A)
+- [69A. Young Physicist](http://codeforces.com/problemset/problem/69/A)
 - [71A. Way Too Long Words](http://codeforces.com/problemset/problem/71/A)
 - [75A. Life Without Zeros](http://codeforces.com/contest/75/problem/A)
 - [96A. Football](http://codeforces.com/problemset/problem/96/A)
@@ -37,7 +39,10 @@
 - [231A. Team](http://codeforces.com/problemset/problem/231/A)
 - [236A. Boy or Girl](http://codeforces.com/problemset/problem/236/A)
 - [262A. Roma and Lucky Numbers](http://codeforces.com/problemset/problem/262/A)
+- [263A. Beautiful Matrix](http://codeforces.com/problemset/problem/263/A)
+- [266B. Queue at the School](http://codeforces.com/problemset/problem/266/B)
 - [268A. Games](http://codeforces.com/problemset/problem/268/A)
+- [271A. Beautiful Year](http://codeforces.com/problemset/problem/271/A)
 - [281A. Word Capitalization](http://codeforces.com/problemset/problem/281/A)
 - [282A. Bit++](http://codeforces.com/problemset/problem/282/A)
 - [304A. Pythagorean Theorem II](http://codeforces.com/problemset/problem/304/A)