Sum

problem statement is here

#include<stdio.h>

int main(){

long a,b,n,i,j,ar[1002],u,m;

scanf("%ld",&n);

for(i=0;i<n;i++){

scanf("%ld",&ar[i]);

}

for(i=1;i<n;i++){

for(j=0;j<n;j++){

scanf("%ld",&u);

if(i==1 && j==2){

m=u;

}

}

}

if(n==2){

printf("1 %ld\n",ar[1]-1);

}else{

a=(ar[1]+ar[2]-m)/2;

printf("%ld",a);

for(i=1;i<n;i++){

b=ar[i]-a;

printf(" %ld",b);

}

printf("\n");

}

return 0;

}