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#include<stdio.h> #include<conio.h> #include<math.h> #define MAX 100 void NhapMaTran(int a[][MAX], int &n) { do { printf("\nNhap n: "); scanf("%d", &n); if(n < 1 || n > MAX) { printf("\nSo phan tu khong hop le. Xin kiem tra lai !"); } }while(n < 1 || n > MAX); for(int i = 0; i < n; i++) { for(int j = 0; j < n; j++) { printf("\nNhap vao a[%d][%d] = ", i, j); scanf("%d", &a[i][j]); } } } void XuatMaTran(int a[][MAX], int n) { for(int i = 0; i < n; i++) { for(int j = 0; j < n; j++) { printf("%4d",a[i][j]); } printf("\n\n"); } } int TinhTongCacPhanTuTrenDuongCheoPhu(int a[][MAX], int n) { int S = 0; for (int i = 0; i < n; i++) { S += a[i][n - 1 - i]; } return S; } int main() { int a[MAX][MAX], n; NhapMaTran(a,n); XuatMaTran(a,n); int tong = TinhTongCacPhanTuTrenDuongCheoPhu(a, n); printf("\nTong cac phan tu tren duong cheo phu = %d", tong); getch(); return 0; }
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