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- #include<stdio.h>
- int main() {
- int n;
- scanf("%d",&n);
- float a[n][n];
- float x,y;
- int i,j;
- for(i=0; i<n; i++)
- for(j=0; j<n; j++)
- scanf("%f", &a[i][j]);
- for(i=0; i<n; i++) {
- for (j=0; j<n; j++) {
- if(i>j)
- x+=a[i][j];
- if(i+j>n-1)
- y+=a[i][j];
- }
- }
- float b[n][n];
- for(i=0; i<n; i++) {
- for (j=0; j<n; j++) {
- if(i==j&&i+j==n-1)
- b[i][j]=x+y;
- else if(i==j)
- b[i][j]=x;
- else if(i+j==n-1)
- b[i][j]=y;
- else
- b[i][j]=0;
- }
- }
- for(i=0; i<n; i++)
- { for(j=0; j<n; j++)
- {printf("%.1f ", b[i][j]);}
- printf("\n");
- }
- return 0;
- }
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