added solution (Triangle With Angle)

CodeChef DSA Learning series Solutions/Easy Problems to get started/Sum Is Everywhere/README.md

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+Sum Is Everywhere Problem Code: SUMEVOD
+Add problem to Todo list
+
+You are given a number N and find the sum of the first N odd and even numbers in a line separated by space. All even and odd numbers should be greater than 0.
+
+Input:
+First-line will contain the number N.
+Output:
+Print the sum of the first N odd and even numbers in a line separated by space.
+
+Constraints
+1≤N≤106
+Sample Input 1:
+4
+Sample Output 1:
+16 20
+Sample Input 2:
+1
+Sample Output 2:
+1 2
+EXPLANATION:
+In the first example, (1 + 3 + 5 + 7) = 16 and (2 + 4 + 6 + 8) = 20.
+In the second example, only one odd that is 1 and only one even that is 2.

CodeChef DSA Learning series Solutions/Easy Problems to get started/Sum Is Everywhere/Solution.cpp

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+#include <iostream>
+#define ll long long
+using namespace std;
+
+int main() {
+ // your code goes here
+ ll n,even,odd;
+
+ cin>>n;
+ even = n(n+1);
+ odd = nn;
+ cout<<odd<<" "<<even;
+
+ return 0;
+}

CodeChef DSA Learning series Solutions/Easy Problems to get started/Triangle With Angle/README.md

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+Triangle With Angle Problem Code: ANGTRICH
+Add problem to Todo list
+
+You're given the three angles a, b, and c respectively. Now check if these three angles can form a valid triangle with an area greater than 0 or not. Print "YES"(without quotes) if it can form a valid triangle with an area greater than 0, otherwise print "NO" (without quotes).
+
+Input:
+First-line will contain three numbers a, b, and c separated by space.
+Output:
+Print "YES"(without quotes) if these sides can form a valid triangle, otherwise print "NO" (without quotes).
+
+Constraints
+0≤a,b,c≤180
+Sample Input 1:
+20 40 120
+Sample Output 1:
+YES
+Sample Input 2:
+100 18 42
+Sample Output 2:
+NO
+EXPLANATION:
+In the first example, angles set (20, 40, 120) can form a triangle with an area greater than 0.
+In the second example, angles set (100, 18, 42) will never form a valid triangle.

CodeChef DSA Learning series Solutions/Easy Problems to get started/Triangle With Angle/Solution.cpp

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+#include <iostream>
+using namespace std;
+
+int main() {
+
+ int a,b,c;
+ cin>>a>>b>>c;
+ if(a+b+c==180&& a>0 && b>0 && c>0){
+ cout<<"YES";
+ }
+ else{
+ cout<<"NO";
+ }
+ return 0;
+}

CodeChef DSA Learning series Solutions/Easy Problems to get started/Valid Triangle Or Not/README.md

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+You're given the length of three sides a, b, and c respectively. Now check if these three sides can form a triangle or not. Print "YES"(without quotes) if it can form a valid triangle with an area greater than 0, otherwise print "NO" (without quotes).
+
+Input:
+First-line will contain three numbers a, b, and c separated by space.
+Output:
+Print "YES"(without quotes) if these sides can form a valid triangle, otherwise print "NO" (without quotes).
+
+Constraints
+1≤a,b,c≤106
+Sample Input 1:
+2 4 3
+Sample Output 1:
+YES
+Sample Input 2:
+1 1 4
+Sample Output 2:
+NO
+EXPLANATION:
+In the first example, (2, 4, 3) can form a triangle with an area greater than 0.
+In the second example, (1, 1, 4) will never form a valid triangle.

CodeChef DSA Learning series Solutions/Easy Problems to get started/Valid Triangle Or Not/Solution.cpp

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+#include <iostream>
+using namespace std;
+
+int main()
+{
+ int a, b, c;
+ cin >> a >> b >> c;
+ if (a + b < c a + c < b b + c < a)
+ cout << "NO";
+ else
+ cout << "YES";
+ return 0;
+}