#include<stdio.h> #include<math.h> int main() { int i,j,n; int a[20][20]; scanf("%d",&n); for(i=0;i<n;i++) { for(j=0;j<n;j++) scanf("%d",&a[i][j]); } for(i=0;i<n;i++) { for(j=i+1;j<n;j++) { t=a[i][j]; a[i][j]=a[j][i]; a[j][i]=t; } } for(i=0;i<n;i++) { for(j=0;j<n;j++) { printf("%d",a[i][j]); if(j!=n-1) printf(" "); } printf("\n"); } return 0; } /* Main.c: In function 'main': Main.c:17:7: error: 't' undeclared (first use in this function) t=a[i][j]; ^ Main.c:17:7: note: each undeclared identifier is reported only once for each function it appears in */ |
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