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