Submission #525020

#	Time	Username	Problem	Language	Result	Execution time	Memory
525020		maks007	Football (info1cup20_football)	C++14	50 / 100	205 ms	2020 KiB

football

#include <bits/stdc++.h>

using namespace std;
#define int long long
int32_t main(void) {
	int t;
	cin >> t;
	int countdown = 0;
	while(t --){
		int n, k;
		cin >> n >> k;
		vector <int> a(n);
		for(int i = 0; i < n; i ++) cin >> a[i];
		if(n == 1) {
			if(k >= a[0]) {
				cout << 1;
				continue;
			}
			if(a[0] % 2 == 1) {
				cout << 1;
				continue;
			}
			n = a[0];
			int mx = 1;
			while(n % 2 == 0) {
				n /= 2;
				mx *= 2;
			}
			if(k >= mx and n > 1) {
				cout << 1;
			}else cout << 0;	
			continue;
		}
		if(k == 1) {
			int sum = accumulate(a.begin(), a.end(), 0ll);
			if(sum % 2 == 1) {
				cout << 1;
			}else cout << 0;
			continue;
		}
		if(k == 2) {
			int sum = accumulate(a.begin(), a.end(), 0ll);
			if(sum % 2 == 1) {
				cout << 1;
				continue;
			}
			int even = 0, odd = 0;
			for(int i = 0; i < a.size(); i ++) {
				if(a[i] % 2 == 1) odd ++;
				else even += a[i];
			}
			if(even%4 == 0) {
				if(odd % 2 == 0) cout << 1;
				else cout << 0;
			}else {
				if(odd % 2 == 0) cout << 0;
				else cout << 1;
			}
			continue;
		}
		int sum = 0;
		for(int i = 0; i < a.size(); i ++) {
			if(a[i] % 2 == 1) sum += 1;
		}
		int move = 0;
		for(int i = 0; i < a.size(); i ++) {
			move += (int)(a[i] / 2);
		}
		if(move % 2 == 0) {
			if(sum % 2 == 1) {
				cout << 1;
			}else cout << 0;
		}else {
			if(sum % 2 == 0) cout << 1;
			else cout << 0;
		}
 
		
	}
	return false;
} 

Compilation message (stderr)

football.cpp: In function 'int32_t main()':
football.cpp:48:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |    for(int i = 0; i < a.size(); i ++) {
      |                   ~~^~~~~~~~~~
football.cpp:62:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   for(int i = 0; i < a.size(); i ++) {
      |                  ~~^~~~~~~~~~
football.cpp:66:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   for(int i = 0; i < a.size(); i ++) {
      |                  ~~^~~~~~~~~~
football.cpp:8:6: warning: unused variable 'countdown' [-Wunused-variable]
    8 |  int countdown = 0;
      |      ^~~~~~~~~

• Subtask 1: 26 / 26
• Subtask 2: 0 / 8
• Subtask 3: 0 / 11
• Subtask 4: 8 / 8
• Subtask 5: 16 / 16
• Subtask 6: 0 / 16
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8