Submission #117620

#	Time	Username	Problem	Language	Result	Execution time	Memory
117620		Bruteforceman	Tenis (COI19_tenis)	C++11	30 / 100	1070 ms	3224 KiB

tenis

#include "bits/stdc++.h"
using namespace std;
int N, Q;
int A[4][100010];
const int mod = 1000000000 + 7;

int opt() {
	long long a = 1, b = 1, c = 1;
	long long aa = 0, bb = 0, cc = 0;
	for(int i = 1; i <= N; i++) {
		aa += A[1][i]; a = (a * A[1][i]) % mod;
		bb += A[2][i]; b = (b * A[2][i]) % mod;
		cc += A[3][i]; c = (c * A[3][i]) % mod;
		if(aa == bb && bb == cc && a == b && b == c) {
			return i;
		}
	}
	return N + 1;
}
 
int pos(int x, int y) {
	for(int i = 1; i <= N; i++) {
		if(A[x][i] == y) return i;
	}
	return 0;
}
 
int main(int argc, char const *argv[])
{
	scanf("%d %d", &N, &Q);
	for(int i = 1; i <= N; i++) {
		scanf("%d", &A[1][i]);
	}
	for(int i = 1; i <= N; i++) {
		scanf("%d", &A[2][i]);
	}
	for(int i = 1; i <= N; i++) {
		scanf("%d", &A[3][i]);
	}
	int first = opt();
	for(int i = 1; i <= Q; i++) {
		int c;
		scanf("%d", &c);
		if(c == 1) {
			int X;
			scanf("%d", &X);
			int id = N + 1;
			bool ans = false;
			for(int j = 1; j <= first; j++) {
				if(A[1][j] == X) {
					ans = true;
					break;
				}
			}
			if(ans) printf("DA\n");
			else printf("NE\n");
		} else {
			int p, x, y;
			scanf("%d %d %d", &p, &x, &y);
			swap(A[p][pos(p, x)], A[p][pos(p, y)]);
			first = opt();
		}
	}	
	return 0;
}

Compilation message (stderr)

tenis.cpp: In function 'int main(int, const char**)':
tenis.cpp:47:8: warning: unused variable 'id' [-Wunused-variable]
    int id = N + 1;
        ^~
tenis.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &Q);
  ~~~~~^~~~~~~~~~~~~~~~~
tenis.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[1][i]);
   ~~~~~^~~~~~~~~~~~~~~~
tenis.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[2][i]);
   ~~~~~^~~~~~~~~~~~~~~~
tenis.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[3][i]);
   ~~~~~^~~~~~~~~~~~~~~~
tenis.cpp:43:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &c);
   ~~~~~^~~~~~~~~~
tenis.cpp:46:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &X);
    ~~~~~^~~~~~~~~~
tenis.cpp:59:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d %d", &p, &x, &y);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 0 / 21
• Subtask 5: 0 / 49