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- #include <stdio.h>
- int main() {
- int n;
- scanf("%d", &n);
- int stu[100][4];
- int t[100];
- int i,j;
- for (i = 0; i < n; i++) {
- for (j = 0; j < 4; j++) {
- scanf("%d", &stu[i][j]);
- }
- }
- for (i = 0; i < n; i++) {
- t[i] = 0;
- for (j = 0; j < 4; j++) {
- t[i] += stu[i][j];
- }
- }
- double totalAvg = 0;
- for (i = 0; i < n; i++) {
- totalAvg += t[i];
- printf("%d ", t[i]);
- }
- printf("\n");
- for (i = 0; i < n; i++) {
- double avg = (double)t[i] / 4;
- printf("%.2f ", avg);
- }
- printf("\n");
- totalAvg /= n;
- printf("%.2f\n", totalAvg/4);
- return 0;
- }
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