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Computer Data Manipulation With Dplyr Difficulty: Medium

What event is raised when the user presses and releases a mouse button on a control in a Windows Forms Application? To print a voucher from Tally we need to press What is the purpose of the "for-each" loop in Java? What is the output of the following code? #include<stdio.h> #include<limits.h> int max_num(int a, int b) { if(a > b) return a; return b; } int kadane_algo(int *arr, int len) { int ans, sum, idx; ans =0; sum =0; for(idx =0; idx < len; idx++) { sum = max_num(0,sum + arr[idx]); ans = max_num(sum,ans); } return ans; } int max_sum_rectangle(int arr[][5],int row,int col) { int left, right, tmp[row], mx_sm = INT_MIN, idx, val; for(left = 0; left < col; left++) { for(right = left; right < col; right++) { if(right == left) { for(idx = 0; idx < row; idx++) tmp[idx] = arr[idx][right]; } else { for(idx = 0; idx < row; idx++) tmp[idx] += arr[idx][right]; } val = kadane_algo(tmp,row); if(val > mx_sm) mx_sm = val; } } return mx_sm; } int main() { int arr[2][5] ={{1, 2, -1, -4, -20}, {-4, -1, 1, 7, -6}}; int row = 2, col = 5; int ans = max_sum_rectangle(arr,row,col); printf("%d",ans); return 0; } What will be the output of the following C++ code? #include <iostream> #include <string> using namespace std; int main () { string str ("microsoft"); string::reverse_iterator r; for (r = str.rbegin() ; r < str.rend(); r++ ) cout << *r; return 0; }