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ѧУµÄproject£¬Ò»¸öÉúÃüÓÎÏ·µÄ³ÌÐò£º ------------------------------------------------------------------------------------------------------ #include #include #define ARRAYSIZE1 3 /* array size, predefined by the user */ #define ARRAYSIZE2 7 #define NSTEPS 2 /* number of steps take */ int main(int argc, char *argv[]) { int i, j, n, im, ip, jm, jp, ni, nj, nsum, isum; int **old, **new; float x; FILE *outFile; ni = ARRAYSIZE1 + 2; /* add 2 for left and right ghost cells */ // nj = ARRAYSIZE2 + 2; old = malloc(ni*sizeof(int*)); new = malloc(ni*sizeof(int*)); for(i=0; i new = malloc(nj*sizeof(int)); } /* initialize elements of old to 0 or 1 */ for(i=1; i<=ARRAYSIZE1; i++){ for(j=1; j<=ARRAYSIZE2; j++){ x = rand()/((float)RAND_MAX + 1); if(x<0.5){ old[j] = 0; } else { old[j] = 1; } } } /* time steps */ for(n=0; n /* corner boundary conditions */ old[0][0] = old[ARRAYSIZE1][ARRAYSIZE2]; old[0][ARRAYSIZE2+1] = old[ARRAYSIZE1][1]; old[ARRAYSIZE1+1][ARRAYSIZE2+1] = old[1][1]; old[ARRAYSIZE1+1][0] = old[1][ARRAYSIZE2]; /* left-right boundary conditions */ for(i=1; i<=ARRAYSIZE1; i++){ old[0] = old[ARRAYSIZE2]; old[ARRAYSIZE2+1] = old[1]; } /* top-bottom boundary conditions */ for(j=1; j<=ARRAYSIZE2; j++){ old[0][j] = old[ARRAYSIZE1][j]; old[ARRAYSIZE1+1][j] = old[1][j]; } for(i=1; i<=ARRAYSIZE1; i++){ for(j=1; j<=ARRAYSIZE2; j++){ im = i-1; ip = i+1; jm = j-1; jp = j+1; nsum = old[im][jp] + old[jp] + old[ip][jp] + old[im][j ] + old[ip][j ] + old[im][jm] + old[jm] + old[ip][jm]; switch(nsum){ case 3: new[j] = 1; break; case 2: new[j] = old[j]; break; default: new[j] = 0; } } } for(i=1; i<=ARRAYSIZE1; i++){ for(j=1; j<=ARRAYSIZE2; j++){ old[j] = new[j]; } } } /* sum the number of living cells */ isum = 0; for(i=1; i<=ARRAYSIZE1; i++){ for(j=1; j<=ARRAYSIZE2; j++){ isum = isum + new[j]; } } printf("\nNumber of living cells = %d\n", isum); return 0; } ------------------------------------------------------------------------------------------------------ ÏÖÔڵijÌÐòÖ±½Ó¶¨ÒåÁËÉúÃüÓÎÏ·ÖеijõʼÌõ¼þ£¬ÈçÏ #define ARRAYSIZE1 3 /* array size, predefined by the user */ #define ARRAYSIZE2 7 #define NSTEPS 2 /* number of steps take */ Ö±½ÓÔËÐпÉÒÔÊä³ö´æ»îϸ°ûÊý£¬ÈçÏ printf("\nNumber of living cells = %d\n", isum); return 0; Ïë°Ñ³ÌÐò¸Ä³ÉÂú×ãÒÔÏÂÌõ¼þµÄгÌÐò£º ÔËÐгÌÐòµÄʱºò½ÓÊÜÊäÈ룬¸ñʽΪ£º [first argument: ÑÝ»¯´ÎÊýsteps] [second argument:µ÷ÓõÄÎļþÃû] ÆäÖе÷ÓõÄÎļþ°üº¬Á˳õʼµÄgrid£¬¸ñʽΪ m ÐÐÊý n ÁÐÊý ¾ÙÀý: 5 6 01100 01110 01000 00000 00000 00000 Êä³ö¸ñʽ²»±ä£¬Êä³ö´æ»îϸ°ûÊý¡£ ÇëÎÊÕâ¸ö³ÌÐòÒªÔõôÐÞ¸ÄÄØ£¿ÇëÊìϤcÓïÑÔµÄǰ±²¶à¶àÖ¸½Ì£¬ÔÚÏߵȻظ´¡£°Ýл£¡ [ Last edited by MajorMei on 2012-11-28 at 12:06 ] |
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2Â¥2012-11-28 13:38:25
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