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- //Edna kvadratna matrica se cita od SV.
- //Najdi gi 4te sumi od regionite opredeleni so glavnata i sporednata dijagonala.
- //Ispecati ja najgolemata suma.
- include <stdio.h>
- int main(){
- int m,n,i,j,s1,s2,s3,s4,maxi;
- scanf("%d %d", &n, &m);
- for(i=0;i<n;i++){
- for(j=0;j<m;j++){
- scanf("%d", a[i][j]);
- }
- }
- s1=0;
- for(i=0;i<n;i++){
- for(j=0;j<m;j++){
- if(i<j&&i+j<n-1){
- s1+=a[i][j];
- }
- }
- }
- s2=0;
- for(i=0;i<n;i++){
- for(j=0;j<m;j++){
- if(i<j&&i+j>n-1){
- s2+=a[i][j];
- }
- }
- }
- s3=0;
- for(i=0;i<n;i++){
- for(j=0;j<m;j++){
- if(i>j&&i+j<n-1){
- s2+=a[i][j];
- }
- }
- }
- s4=0;
- for(i=0;i<n;i++){
- for(j=0;j<m;j++){
- if(i>j&&i+j>n-1){
- s4+=a[i][j];
- }
- }
- }
- maxi=s1;
- if(s2>maxi){
- maxi=s2;
- }
- if(s3>maxi){
- maxi=s3;
- }
- if(s4>maxi){
- maxi=s4;
- }
- printf("%d", maxi);
- return 0;
- }
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