8 problems solved.

lintcoder · lintcoder · commit f7a2ebf3f508 · 2023-06-06T22:31:12.000+08:00
diff --git a/src/2639.cpp b/src/2639.cpp
@@ -0,0 +1,26 @@
+vector<int> findColumnWidth(vector<vector<int>>& grid) {
+        int row = grid.size();
+        int col = grid[0].size();
+
+        vector<int> res(col, 0);
+        for (int i = 0; i < col; ++i)
+        {
+            int maxlen = 0;
+            for (int j = 0; j < row; ++j)
+            {
+                int n = 1;
+                if (grid[j][i] != 0)
+                {
+                    n = log10(abs(grid[j][i]))+1;
+                    if (grid[j][i] < 0)
+                        ++n;
+                }
+                if (n > maxlen)
+                    maxlen = n;
+            }
+
+            res[i] = maxlen;
+        }
+
+        return res;
+    }
diff --git a/src/2643.cpp b/src/2643.cpp
@@ -0,0 +1,22 @@
+vector<int> rowAndMaximumOnes(vector<vector<int>>& mat) {
+        int row = mat.size();
+        int col = mat[0].size();
+        
+        vector<int> res(2, 0);
+        for (int r = 0; r < row; ++r)
+        {
+            int ct = 0;
+            for (int c = 0; c < col; ++c)
+            {
+                if (mat[r][c] == 1)
+                    ++ct;
+            }
+            if (ct > res[1])
+            {
+                res[0] = r;
+                res[1] = ct;
+            }
+        }
+
+        return res;
+    }
diff --git a/src/2651.cpp b/src/2651.cpp
@@ -0,0 +1,3 @@
+    int findDelayedArrivalTime(int arrivalTime, int delayedTime) {
+        return (arrivalTime + delayedTime) % 24;
+    }
diff --git a/src/2652.cpp b/src/2652.cpp
@@ -0,0 +1,12 @@
+int sumOfMultiples(int n) {
+        const int arr[7] = {n/3, n/5, n/7, n/15, n/21, n/35, n/105};
+        int sum1 = 3*arr[0] + arr[0]*(arr[0]-1)*3/2;
+        int sum2 = 5*arr[1] + arr[1]*(arr[1]-1)*5/2;
+        int sum3 = 7*arr[2] + arr[2]*(arr[2]-1)*7/2;
+        int sum4 = 15*arr[3] + arr[3]*(arr[3]-1)*15/2;
+        int sum5 = 21*arr[4] + arr[4]*(arr[4]-1)*21/2;
+        int sum6 = 35*arr[5] + arr[5]*(arr[5]-1)*35/2;
+        int sum7 = 105*arr[6] + arr[6]*(arr[6]-1)*105/2;
+
+        return sum1+sum2+sum3-sum4-sum5-sum6+sum7;
+    }
diff --git a/src/2678.cpp b/src/2678.cpp
@@ -0,0 +1,11 @@
+int countSeniors(vector<string>& details) {
+        int ct = 0;
+        int len = details.size();
+        for (int i = 0; i < len; ++i)
+        {
+            if ((details[i][11] > '6') || (details[i][11] == '6' && details[i][12] > '0'))
+                ++ct;
+        }
+
+        return ct;
+    }
diff --git a/src/2706.cpp b/src/2706.cpp
@@ -0,0 +1,28 @@
+int buyChoco(vector<int>& prices, int money) {
+        int minprice1 = 101;
+        int minprice2 = 101;
+        int len = prices.size();
+
+        for (int i = 0; i < len; ++i)
+        {
+            if (minprice1 == 101)
+            {
+                if (prices[i] < minprice1)
+                    minprice1 = prices[i];
+            }
+            else if (prices[i] < minprice1)
+            {
+                minprice2 = minprice1;
+                minprice1 = prices[i];
+            }
+            else if (prices[i] < minprice2)
+            {
+                minprice2 = prices[i];
+            }
+        }
+
+        if (minprice1 + minprice2 <= money)
+            return money - minprice1 - minprice2;
+        else
+            return money;
+    }
diff --git a/src/2710.cpp b/src/2710.cpp
@@ -0,0 +1,11 @@
+string removeTrailingZeros(string num) {
+        int len = num.size();
+        int i;
+        for (i = len-1; i >= 0; --i)
+        {
+            if (num[i] != '0')
+                break;
+        }
+
+        return num.substr(0, i+1);
+    }
diff --git a/src/2716.cpp b/src/2716.cpp
@@ -0,0 +1,13 @@
+int minimizedStringLength(string s) {
+        char arr[26] = {0};
+        int len = s.size();
+        int ct = 0;
+        for (int i = 0; i < len; ++i)
+        {
+            arr[s[i]-'a']++;
+            if (arr[s[i]-'a'] == 1)
+                ++ct;
+        }
+
+        return ct;
+    }

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+ int findDelayedArrivalTime(int arrivalTime, int delayedTime) {`
	`2`	`+ return (arrivalTime + delayedTime) % 24;`
	`3`	`+ }`