I'm writing a code in C to solve partial differential 2D heat equations through Gauss-Seidel Iterations. I was using TurboC++ to compile and the program ran perfectly, but when I switched to Code::Blocks and compiled and ran the program, all I get is a black screen. I'm a beginner in C programming and can't figure out why I'm not getting any output on the screen. Any help would be greatly appreciated!I have written the following code :

Code:#include <stdio.h> int i,j,imax=21,jmax=41,n=0; float dx=0.05,dy=0.05,T1=150,T2=0,T3=0,T4=0,error,error_max=0.01,T_o ld,T[22][42]; /*Initialization of T at interior points*/ for(i=1;i<=imax;i++) for(j=1;j<=jmax;j++) T[i][j]=0; /*T at boundary points*/ for(j=1;j<=jmax;j++) { T[1][j]=T2; T[imax][j]=T4; } for(i=1;i<=imax;i++) { T[i][1]=T1; T[i][jmax]=T3; } /*Gauss-Seidel Iterations*/ { error=0;n++; for(i=2;i<imax;i++) { for(j=2;j<jmax;j++) { T_old=T[i][j]; T[i][j]=(dy*dy*(T[i+1][j]+T[i-1][j])+dx*dx*(T[i][j+1]+T[i][j-1]))/(2*(dx*dx+dy*dy)); if(T_old>T[i][j]) error=error+(T_old-T[i][j]); else error=error+(T[i][j]-T_old); } } }while(error>error_max); /*results*/ printf("i \t j \t T (Gauss-Seidel)"); for(j=1;j<=jmax;j++) printf("\n 11 \t %d \t %f",j,T[11][j]); printf("\n error = %f,\n n = %d", error,n);