PROBLEM LINK:
Practice
Contest: Division 1
Contest: Division 2
Contest: Division 3
Contest: Division 4
Author: Abhinav Gupta
Testers: Abhinav Sharma, Venkata Nikhil Medam
Editorialist: Nishank Suresh
DIFFICULTY:
358
PREREQUISITES:
None
PROBLEM:
X million people live in a town. Of them, Y million leave and Z million enter. How many people are in the town now?
EXPLANATION:
There were initially X million people in the town. After Y million leave, there were X - Y million people in it. After Z million entered, there are X - Y + Z million people in it. Thus, the solution is to print X - Y + Z.
TIME COMPLEXITY:
\mathcal{O}(1) per test case.
CODE:
Tester (C++)
// Tester: Nikhil_Medam
#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
int t, x, y, z;
int32_t main() {
cin >> t;
while(t--) {
cin >> x >> y >> z;
cout << x - y + z << endl;
}
return 0;
}
Editorialist (Python)
for _ in range(int(input())):
x, y, z = map(int, input().split())
print(x - y + z)