将上述代码填充完整为为可直接运行代码，以及该N-Queens为4*4的棋盘，最好为Python和C语言代码

首先，我将为你提供一个Python版本的完整N-Queens动画代码，这是一个基于pygame库实现的简单示例，适用于4x4棋盘：

import pygame
import random

# 初始化Pygame
pygame.init()

# 设置棋盘尺寸和颜色
BOARD_SIZE = (600, 600)
CELL_SIZE = BOARD_SIZE[0] // 4
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)

# 创建窗口和棋盘表面
screen = pygame.display.set_mode(BOARD_SIZE)
board_surface = pygame.Surface(BOARD_SIZE)

# 回溯解决N-Queens问题
def solve_n_queens(n, board, row=0):
    if row == n:
        return True
    for col in range(n):
        if is_safe(board, row, col):
            board[row][col] = 1
            if solve_n_queens(n, board, row + 1):
                return True
            board[row][col] = 0
    return False

def is_safe(board, row, col):
    # 检查上下左右是否冲突
    for r in range(row):
        if board[r][col]:
            return False
    for c in range(col):
        if board[row][c]:
            return False
    row_start = max(0, row - col)
    row_end = min(len(board) - 1, row + col)
    for r in range(row_start, row_end + 1):
        if board[r][col]:
            return False
    return True

def draw_board(board):
    for row in range(len(board)):
        for col in range(len(board[row])):
            if board[row][col]:
                pygame.draw.rect(board_surface, BLACK, (col * CELL_SIZE, row * CELL_SIZE, CELL_SIZE, CELL_SIZE))
            else:
                pygame.draw.rect(board_surface, WHITE, (col * CELL_SIZE, row * CELL_SIZE, CELL_SIZE, CELL_SIZE))

# 主循环
def main():
    board = [[0] * 4 for _ in range(4)]
    if not solve_n_queens(4, board):
        print("No solution found!")
        return

    clock = pygame.time.Clock()
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return
        
        draw_board(board)
        screen.blit(board_surface, (0, 0))
        pygame.display.flip()
        clock.tick(10)

# 启动主程序
if __name__ == "__main__":
    main()

现在，对于C语言版本，由于其图形界面库如SDL或SFML相对复杂，这里给出一个简化的命令行版的N-Queens解决方案，使用标准输入输出来打印棋盘结果：

#include <stdio.h>
#include <stdlib.h>

#define BOARD_WIDTH 4
#define BOARD_HEIGHT 4

int board[BOARD_WIDTH][BOARD_HEIGHT];

// 判断当前位置是否安全
int is_safe(int row, int col) {
    for (int i = 0; i < row; i++) {
        if (board[i][col]) return 0;
    }
    for (int i = 0; i < col; i++) {
        if (board[row][i]) return 0;
    }
    int start = MAX(0, row - col);
    int end = MIN(row + col, BOARD_WIDTH - 1);
    for (int i = start; i <= end; i++) {
        if (board[i][col]) return 0;
    }
    return 1;
}

// 递归解决N-Queens
void solve_n_queens(int row) {
    if (row >= BOARD_WIDTH) {
        print_board();
        return;
    }
    for (int col = 0; col < BOARD_WIDTH; col++) {
        if (is_safe(row, col)) {
            board[row][col] = 1;
            solve_n_queens(row + 1);
            board[row][col] = 0;
        }
    }
}

// 打印棋盘
void print_board() {
    for (int i = 0; i < BOARD_HEIGHT; i++) {
        for (int j = 0; j < BOARD_WIDTH; j++) {
            printf("%d ", board[i][j]);
        }
        printf("\n");
    }
    printf("\n");
}

int main() {
    srand(time(0));
    for (int i = 0; i < BOARD_WIDTH; i++) {
        board[i][rand() % BOARD_WIDTH] = 1;
    }
    solve_n_queens(0);
    return 0;
}

注意：C语言版本没有图形界面，只是一个标准控制台程序，它会在终端上随机生成一个解。如果你想看到C++的图形化版本，可以考虑使用像GLFW这样的库。