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需求定义：

编写程序实现两人互玩的五子棋游戏。游戏开始时要求在控制台输出以下棋盘，然后提示黑方和白方下子，玩家从命令行输入落子坐标，如：1-2,表示在第二行第三列落子，其中黑方的子用@表示,白方的子用O(大写字母O)表示,空白位置用*表示，每有一方落子，则要重新输出棋盘的状态，程序还要能判断某一方获胜，并终止游戏。

棋盘初始状态如下：

代码实现：

#include

#define N 14

#include

char state[N][N];

void init(void);

void printState(void);

bool isWin(bool isBlack,int x,int y);

bool isLevelWin(bool isBlack,int x,int y);

bool isVerticalWin(bool isBlack,int x,int y);

bool isLeftInclinedWin(bool isBlack,int x,int y);

bool isRightObliqueWin(bool isBlack,int x,int y);

bool isWin(bool isBlack,int x,int y)

{

return isLevelWin(isBlack,x,y)

||isVerticalWin(isBlack,x,y)

||isLeftInclinedWin(isBlack,x,y)

||isRightObliqueWin(isBlack,x,y);

}

bool isLevelWin(bool isBlack,int x,int y)

{

char c = isBlack ? '@':'O';

int count;

while(y>0 && state[x][y] == c)

{

y--;

}

count =0;

if(state[x][y] == c) count = 1;

y++;

while(y < N && state[x][y] == c)

{

count++;

if(count == 5)

{

return true;

}

y++;

}

return false;

}

bool isVerticalWin(bool isBlack,int x,int y)

{

char c = isBlack ? '@':'O';

int count;

while(x>0 && state[x][y] == c)

{

x--;

}

count =0;

if(state[x][y] == c) count = 1;

x++;

while(x < N && state[x][y] == c)

{

count++;

if(count == 5)

{

return true;

}

x++;

}

return false;

}

bool isLeftInclinedWin(bool isBlack,int x,int y)

{

char c = isBlack ? '@':'O';

int count;

while(x>0 && y>0 && state[x][y] == c)

{

y--;

x--;

}

count =0;

if(state[x][y] == c) count = 1;

x++;

y++;

while(x < N && y < N && state[x][y] == c)

{

count++;

if(count == 5)

{

return true;

}

x++;

y++;

}

return false;

}

bool isRightObliqueWin(bool isBlack,int x,int y)

{

char c = isBlack ? '@':'O';

int count;

while(x>0 && y

{

y++;

x--;

}

count =0;

if(state[x][y] == c) count = 1;

x++;

y--;

while(x < N && y >= 0 && state[x][y] == c)

{

count++;

if(count == 5)

{

return true;

}

x++;

y--;

}

return false;

}

void init(void)

{

int i,j;

for(i=0;i

{

for(j=0;j

{

state[i][j] = '*';

}

}

}

void printState(void)

{

int i,j;

printf("%3c",' ');

for(i=0;i

printf("%3d",i);

printf("\n");

printf("-----------------------------------------------------\n");

for(i=0;i

{

printf("%3d",i);

for(j=0;j

{

printf("%3c",state[i][j]);

}

printf("\n");

}

}

int main(void)

{

int x,y;

bool isBlack = true;

init();

printf("------------------\n");

printState();

while(1)

{

printf("please %s quick snip\n",(isBlack?"black":"white"));

printf("example:(1-2)\n");

scanf("%d-%d",&x,&y);

if(state[x][y]=='@' || state[x][y]=='O')

{

printf("this position to have pieces\n");

continue;

}

state[x][y] = (isBlack?'@':'O');

printState();

if(isWin(isBlack,x,y))

{

printf("%s win\n",(isBlack?"black":"white"));

break;

}

isBlack = !isBlack;

}

}

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