如何在C编程中生成带有特定区域附加特定数字的矩阵?

Question

int main(int argc, char *argv[]){
int grid_u[51][51];
int grid_v[51][51];
int u[] = {0,1};
int v[] = {0,1};
int i,j;
int n = 0;
for (i = 0; i < 10; i++){
for (j = 0; j < 10; j++){
grid_u[i][j] = u[1];
grid_v[i][j] = v[0];
}
}
for (i = 10;i <= 20; i++){
for (j = 10;j <= 20; j++){
grid_u[i][j] = u[0];
grid_v[i][j] = v[1];
}
}
for (i = 21; i <= 50; i++){
for (j = 21; j <= 50; j++){
grid_u[i][j] = u[1];
grid_v[i][j] = v[0];
}
}
for (i = 0; i <= 50; i++){
for (j = 0; j <= 50; j++, n++){
if (n % 51 == 0){
printf("n");
}
printf("%d ", grid_u[i][j]);
}
printf("n");
}
for (i = 0; i <= 50; i++){
for (j = 0; j <= 50; j++, n++){
if (n % 51 == 0){
printf("n");
}
printf("%d ", grid_v[i][j]);
}
printf("n");
}
}

像上面的代码一样，我想创建两个具有特定区域的51*51矩阵，一个从10~20索引的框附加特定数字，这是一个11*11平方框。但是结果很奇怪，有人能帮我弄明白吗?非常感激。期望的矩阵是这样的:

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 

但是输出是:

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -389530064 32766 201198390 1 0 0 539592928 32767 0 -507641278 539592928 32767 539592928 32767 539592928 32767 0 0 0 0 -389529936 32766 201195565 1 0 0 0 0 0 
0 0 0 0 0 0 0 -389527408 32766 539592928 32767 446038026 -2119743701 539592928 32767 539592928 32767 539592928 32767 0 0 -389527408 32766 -389528784 32766 201194920 1 0 0 0 0 0 0 0 0 539592928 32767 0 0 -389527408 32766 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -389529648 32766 201198390 1 -389529632 32766 538241768 32767 0 -11761900 538241768 32767 538241768 32767 538241768 32767 -389529584 32766 201198390 1 -389529520 32766 710482432 32767 0 -1690551536 710482432 
32767 710482432 32767 710482432 32767 0 0 0 0 -389529456 32766 201195565 1 446038026 -2119743701 538241768 32767 538241768 32767 538241768 32767 0 0 0 0 -389526928 32766 710482432 32767 446038026 -2119743701 710482432 32767 710482432 32767 710482432 32767 0 0 -389526928 32766 -389528304 32766 201194920 1 -389526976 32766 0 0 0 0 
0 0 710482432 32767 0 0 -389526928 32766 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -389529184 32766 201198390 1 0 0 538145032 32767 0 -886581335 538145032 32767 538145032 
32767 538145032 32767 0 0 0 0 -389529056 32766 201195565 1 -389529088 32766 201198390 1 0 0 541141784 32767 0 -1288945918 541141784 32767 541141784 32767 541141784 32767 0 0 0 0 -389528960 32766 201195565 1 0 0 -389526528 32766 -389527904 32766 201194920 1 0 0 0 0 -389526432 32766 541141784 32767 
446038026 -2119743701 541141784 32767 541141784 32767 541141784 32767 0 0 -389526432 32766 -389527808 32766 201194920 1 0 0 0 0 0 0 0 0 541141784 32767 0 0 -389526432 32766 0 0 0 0 0 0 0 0 0 0 32 0 135296 0 446038026 -2119743701 539592928 32767 539592928 32767 -389527408 
32766 0 0 539592928 32767 -389528704 32766 201192449 1 9 0 0 0 446038026 -2119743701 539592928 32767 0 0 9 0 65536 0 539592928 32767 -389528576 32766 201157890 1 0 5 132858 133013 133035 135150 135254 135274 -389528576 32766 0 0 -389527408 32766 539592928 32767 446038026 -2119743701 539592928 32767 -389527408 32766 
9 0 65536 0 539592928 32767 -389527424 32766 201156681 1 0 0 0 0 0 0 0 0 0 0 0 0 -389525920 32766 616766208 26 201842144 1 616766208 32767 -389527104 32766 201814680 1 0 0 -389525920 32766 -389527296 32766 201194920 1 -389528352 32766 201198390 1 446038026 -2119743701 538241768 32767 538241768 
32767 -389526992 32766 0 0 538241768 32767 -389528288 32766 201192449 1 446038026 -2119743701 710482432 32767 710482432 32767 -389526928 32766 0 0 710482432 32767 -389528224 32766 201192449 1 -389528160 32766 201157890 1 446038026 -2119743701 710482432 32767 0 0 12 0 65536 0 710482432 32767 -389528096 32766 201157890 1 446038026 -2119743701 538241768 32767 
-389526992 32766 11 0 65536 0 0 0 -389526928 32766 710482432 32767 446038026 -2119743701 710482432 32767 -389526928 32766 12 0 65536 0 710482432 32767 -389526944 32766 201156681 1 201837632 1 537923568 27 -389526640 32766 201814680 1 -389526640 32766 201814680 1 -389527904 32766 201195565 27 201841856 1 540166192 32767 -389526544 32766 201814680 
1 201846864 1 0 0 -389525376 32766 537923568 32767 446038026 -2119743701 538145032 32767 538145032 32767 -389526528 32766 0 0 538145032 32767 -389527824 32766 201192449 1 -389527808 32766 201198390 1 446038026 -2119743701 538145032 32767 446038026 -2119743701 541141784 32767 541141784 32767 -389526432 32766 0 0 541141784 32767 -389527728 32766 201192449 1 -389527664 32766 
201195565 1 446038026 -2119743701 541141784 32767 0 0 13 0 65536 0 541141784 32767 -389527600 32766 201157890 1 65536 0 538145032 32767 -389526544 32766 201156681 1 -389526528 32766 0 0 -389526432 32766 541141784 32767 446038026 -2119743701 541141784 32767 -389526432 32766 13 0 65536 0 541141784 32767 -389526448 32766 201156681 1 -389527456 
32766 201195565 1 -389527488 32766 201198390 1 -389527408 32766 578869728 32767 0 -1288945918 578869728 30 201842416 1 578869728 32767 -389526032 32766 201814680 1 -389527360 32766 201195565 1 446038026 -2119743701 201842928 1 201842144 0 9 0 65536 0 -389527144 32766 446038026 -2119743701 9 0 201842144 1 -389527120 32766 0 0 201814680 1 
-389526960 32766 201237120 1 539592360 32767 2 65536 14942208 -2130640895 539592416 32767 2 65536 55836928 1 539592472 32767 2 65536 471567399 1 539592536 32767 2 65536 16666626 1 539592608 32767 2 65536 -389527152 32766 538248373 32767 -2029124312 32767 -2140435368 32767 -2140435352 32767 -2140435320 32767 0 0 -2140435664 32767 0 0 -2140434248 
32767 -389527072 32766 538248373 32767 -2029124312 32767 -2140435368 32767 -2140435352 32767 -2140435320 32767 0 0 -2140435664 32767 0 0 -2140434248 32767 -389526992 32766 538248373 32767 -2029124312 32767 -389526976 32766 -389526960 32766 -389526928 32766 0 0 -2140434248 32767 -389526992 32766 540045747 32767 0 0 -389526512 32766 -389526400 32766 538250950 32767 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 538902282 32767 0 0 5120 0 1 0 2 0 116988416 1 116993536 1 -389526464 32766 538901088 32767 -1073737726 -157745152 -2140405761 32767 1530938464 32721 116961280 1 -389526544 32766 538904623 32767 
0 0 538902282 32767 0 0 5120 0 1 0 2 0 116988416 1 116993536 1 -389526336 32766 538901088 32767 -1073737726 -157745152 539492351 32767 1530938464 32721 116961280 1 -389526416 32766 538904623 32767 0 0 538902282 32767 0 0 5120 0 1 0 2 0 116988416 1 116993536 1 -389526208 32766 538901088 
32767 -1073737726 -157745152 539492351 32767 1530938464 32721 116961280 1 -389526288 32766 538904623 32767 0 0 1530938464 32721 -389526224 32766 538919169 32767 -2146959359 0 1530938464 32721 1530938464 32721 -2140581792 32767 1 0 0 0 -389526096 32766 539453250 32767 -389526160 32766 538895975 32767 -2140323840 32767 32 0 0 0 2 0 -389526096 32766 
539457653 32767 -2140581712 32767 1535149624 32721 0 0 -2029115376 32767 2 0 0 0 -389525968 32766 -2140581672 32767 1530938432 32721 116961280 1 -389526032 32766 538904623 32767 0 0 1530938432 32721 -389525968 32766 538919169 32767 -2146959360 0 1530938432 32721 1530938432 32721 -2140581752 32767 -389525696 32766 0 0 -389525840 32766 539453250 32767 0 

它很乱，我不知道为什么它是这样的。for循环中的附加进程似乎没有按照预期的顺序运行，因此它返回了大量的大内存地址…

Answer 1

您没有显式设置数组中的所有条目。局部变量不会自动初始化，因此在设置之前，它们会包含垃圾。将数组声明修改如下，将它们初始化为全零:

int grid_u[51][51] = { 0 };
int grid_v[51][51] = { 0 };