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| @@ -0,0 +1,150 @@ | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| 9 | ||
| 0 0 0 1 1 1 -1 -1 -1 | ||
| 0 0 0 1 1 1 -1 -1 -1 | ||
| 0 0 0 1 1 1 -1 -1 -1 | ||
| 1 1 1 0 0 0 0 0 0 | ||
| 1 1 1 0 0 0 0 0 0 | ||
| 1 1 1 0 0 0 0 0 0 | ||
| 0 1 -1 0 1 -1 0 1 -1 | ||
| 0 -1 1 0 1 -1 0 1 -1 | ||
| 0 1 -1 1 0 -1 0 1 -1 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| // BOJ_1780 | ||
|
|
||
| #define _CRT_SECURE_NO_WARNINGS | ||
|
|
||
| #define TRUE 1 | ||
| #define FALSE 0 | ||
|
|
||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
|
|
||
| void divideMat(int n, int start_row, int start_col); | ||
| void printRes(); | ||
|
|
||
| // for convenience | ||
| int** mat; | ||
| int cnt_1 = 0, cnt_2 = 0, cnt_3 = 0; // counter of -1, 0, 1 | ||
|
|
||
| int main() { | ||
| int n, temp; | ||
|
|
||
| /* | ||
| FILE* fp = fopen("input.txt", "r"); | ||
| if (fp == NULL) { | ||
| printf("File open error!\n"); | ||
| exit(1); | ||
| } | ||
| fscanf(fp, "%d", &n); | ||
| */ | ||
|
|
||
| scanf("%d", &n); | ||
|
|
||
| mat = (int**)malloc(sizeof(int*) * n); | ||
| for (int i = 0;i < n;i++) { | ||
| mat[i] = (int*)malloc(sizeof(int) * n); | ||
| } | ||
|
|
||
| for (int i = 0;i < n;i++) { | ||
| for (int j = 0;j < n;j++) { | ||
| //fscanf(fp, "%d", &temp); | ||
| scanf("%d", &temp); | ||
| mat[i][j] = temp; | ||
| } | ||
| } | ||
|
|
||
| divideMat(n, 0, 0); | ||
|
|
||
| printRes(); | ||
|
|
||
| free(mat); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| void count(int flag) { | ||
| switch (flag) { | ||
| case -1: | ||
| cnt_1++; | ||
| break; | ||
| case 0: | ||
| cnt_2++; | ||
| break; | ||
| case 1: | ||
| cnt_3++; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| int check(int n, int s_row, int s_col) { // n by n matrix | ||
| int temp = mat[s_row][s_col]; | ||
|
|
||
| for (int i = s_row;i < s_row + n;i++) { | ||
| for (int j = s_col;j < s_col + n;j++) { | ||
| if (temp != mat[i][j]) return FALSE; | ||
| } | ||
| } | ||
| count(temp); // all number is same! | ||
|
|
||
| return TRUE; | ||
| } | ||
|
|
||
| void divideMat(int n, int start_row, int start_col) { | ||
| int res = check(n, start_row, start_col); | ||
| if ( n > 1 && res == FALSE) { // exit condition! | ||
| for (int i = start_row;i < start_row + n;i += n / 3) { // divide to 9 matrices | ||
| for (int j = start_col;j < start_col + n;j += n / 3){ | ||
| divideMat(n / 3, i, j); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void printRes() { | ||
| printf("%d\n", cnt_1); | ||
| printf("%d\n", cnt_2); | ||
| printf("%d\n", cnt_3); | ||
| } |