Submission #2168926


Source Code Expand

#include <cstdio>
int n, m, a[100009], b[100009]; bool r[409][409], f[409];
int main() {
	scanf("%d %d", &n, &m);
	for (int i = m - 1; i >= 0; i--) scanf("%d %d", &a[i], &b[i]), a[i]--, b[i]--;
	for (int i = 0; i < n; i++) {
		r[i][i] = true;
		for (int j = 0; j < m; j++) {
			if (r[i][a[j]] && r[i][b[j]]) f[i] = true;
			if (r[i][a[j]]) r[i][b[j]] = true;
			if (r[i][b[j]]) r[i][a[j]] = true;
		}
	}
	int ret = 0;
	for (int i = 0; i < n; i++) {
		for (int j = i + 1; j < n; j++) {
			bool ok = true;
			for (int k = 0; k < n; k++) {
				if (r[i][k] && r[j][k]) ok = false;
			}
			if (ok && !f[i] && !f[j]) ret++;
		}
	}
	printf("%d\n", ret);
	return 0;
}

Submission Info

Submission Time
Task E - Poor Turkeys
User square1001
Language C++14 (GCC 5.4.1)
Score 1400
Code Size 684 Byte
Status AC
Exec Time 107 ms
Memory 1152 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:4:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
                        ^
./Main.cpp:5:79: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (int i = m - 1; i >= 0; i--) scanf("%d %d", &a[i], &b[i]), a[i]--, b[i]--;
                                                                               ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 1400 / 1400
Status
AC × 4
AC × 75
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt, 1_64.txt, 1_65.txt, 1_66.txt, 1_67.txt, 1_68.txt, 1_69.txt, 1_70.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 128 KB
0_01.txt AC 1 ms 128 KB
0_02.txt AC 1 ms 128 KB
0_03.txt AC 1 ms 128 KB
1_00.txt AC 28 ms 384 KB
1_01.txt AC 29 ms 384 KB
1_02.txt AC 31 ms 384 KB
1_03.txt AC 36 ms 384 KB
1_04.txt AC 38 ms 384 KB
1_05.txt AC 37 ms 384 KB
1_06.txt AC 38 ms 384 KB
1_07.txt AC 38 ms 384 KB
1_08.txt AC 44 ms 384 KB
1_09.txt AC 45 ms 384 KB
1_10.txt AC 49 ms 512 KB
1_11.txt AC 45 ms 512 KB
1_12.txt AC 71 ms 768 KB
1_13.txt AC 94 ms 1024 KB
1_14.txt AC 84 ms 896 KB
1_15.txt AC 85 ms 896 KB
1_16.txt AC 29 ms 384 KB
1_17.txt AC 30 ms 384 KB
1_18.txt AC 31 ms 384 KB
1_19.txt AC 35 ms 384 KB
1_20.txt AC 36 ms 384 KB
1_21.txt AC 38 ms 384 KB
1_22.txt AC 38 ms 384 KB
1_23.txt AC 38 ms 384 KB
1_24.txt AC 44 ms 384 KB
1_25.txt AC 43 ms 384 KB
1_26.txt AC 44 ms 512 KB
1_27.txt AC 47 ms 512 KB
1_28.txt AC 79 ms 768 KB
1_29.txt AC 88 ms 896 KB
1_30.txt AC 76 ms 768 KB
1_31.txt AC 65 ms 640 KB
1_32.txt AC 29 ms 384 KB
1_33.txt AC 30 ms 384 KB
1_34.txt AC 30 ms 384 KB
1_35.txt AC 35 ms 384 KB
1_36.txt AC 35 ms 384 KB
1_37.txt AC 37 ms 384 KB
1_38.txt AC 39 ms 384 KB
1_39.txt AC 38 ms 384 KB
1_40.txt AC 45 ms 384 KB
1_41.txt AC 47 ms 512 KB
1_42.txt AC 44 ms 384 KB
1_43.txt AC 46 ms 512 KB
1_44.txt AC 101 ms 1024 KB
1_45.txt AC 95 ms 1024 KB
1_46.txt AC 93 ms 1024 KB
1_47.txt AC 90 ms 896 KB
1_48.txt AC 26 ms 384 KB
1_49.txt AC 26 ms 384 KB
1_50.txt AC 27 ms 384 KB
1_51.txt AC 34 ms 384 KB
1_52.txt AC 31 ms 384 KB
1_53.txt AC 30 ms 384 KB
1_54.txt AC 30 ms 384 KB
1_55.txt AC 35 ms 384 KB
1_56.txt AC 33 ms 384 KB
1_57.txt AC 33 ms 384 KB
1_58.txt AC 34 ms 384 KB
1_59.txt AC 40 ms 384 KB
1_60.txt AC 78 ms 896 KB
1_61.txt AC 76 ms 896 KB
1_62.txt AC 75 ms 896 KB
1_63.txt AC 71 ms 896 KB
1_64.txt AC 24 ms 384 KB
1_65.txt AC 24 ms 384 KB
1_66.txt AC 25 ms 384 KB
1_67.txt AC 39 ms 384 KB
1_68.txt AC 42 ms 384 KB
1_69.txt AC 107 ms 1152 KB
1_70.txt AC 1 ms 128 KB