CSES - Aalto Competitive Programming 2024 - wk10 - Mon - Results
Submission details
Task:Polygon area
Sender:ZDHKLV
Submission time:2024-11-11 16:31:31 +0200
Language:C++ (C++11)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.00 sdetails
#2ACCEPTED0.00 sdetails
#30.00 sdetails

Code

#include <bits/stdc++.h>

using namespace std;

int main() {

    int n;
    cin >> n;

    vector<long long> x(n), y(n);

    for (int i = 0; i < n; i++) {
        int a, b;
        cin >> a >> b;
        x[i] = a;
        y[i] = b;
    }

    long long output = 0;

    for (int i = 0; i < n; i++) {
        output += x[i] * y[(i+1) % n] - x[(i+1) % n] * y[i];
    }

    cout << output << endl;

}

Test details

Test 1

Verdict: ACCEPTED

input
100
-7 -19
91 77
100 100
64 60
...

correct output
43582

user output
43582

Test 2

Verdict: ACCEPTED

input
1000
365625896 -113418831
278762563 38777445
250367343 -96991975
175866909 -129766978
...

correct output
4053466653883387139

user output
4053466653883387139

Test 3

Verdict:

input
4
-1000000000 -1000000000
-1000000000 1000000000
1000000000 1000000000
1000000000 -1000000000

correct output
8000000000000000000

user output
-8000000000000000000