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#include <iostream> #include <string> using namespace std; char spaces[6][7]; int jrow[7] = {5, 5, 5, 5, 5, 5, 5}; bool on = true; void init(); void board(); void checkWin(int row, int col); int main() { int i = 0; init(); cout << "Connect 4 -- Enter the corresponding number to drop a piece" << endl; for (int loop = 0; loop < 21; loop++) { board(); if (loop > 3) { checkWin(jrow[i] + 1, i); } if (on == false) { return 0; } cin >> i; i--; while (cin.fail() || i > 6 || jrow[i] < 0) { cin.clear(); cin.ignore(256, '\n'); cout << "Input was invalid, choose a different row." << endl; cin >> i; i--; } if (jrow[i] >= 0) { spaces[jrow[i]][i] = 'x'; jrow[i]--; } board(); if (loop > 2) { checkWin(jrow[i] + 1, i); } if (on == false) { return 0; } cin >> i; i--; while (cin.fail() || i > 6 || jrow[i] < 0) { cin.clear(); cin.ignore(256, '\n'); cout << "Input was invalid, choose a different row." << endl; cin >> i; i--; } if (jrow[i] >= 0) { spaces[jrow[i]][i] = 'o'; jrow[i]--; } } cout << "It's a tie!"; } void init() { for (int i = 0; i < 7; i++) { for (int j = 0; j < 6; j++) { spaces[j][i] = ' '; } } } void board() { cout << " 1 2 3 4 5 6 7" << endl << "| " << spaces[0][0] << " | " << spaces[0][1] << " | " << spaces[0][2] << " | " << spaces[0][3] << " | " << spaces[0][4] << " | " << spaces[0][5] << " | " << spaces[0][6] << " | " << endl << "-----------------------------" << endl << "| " << spaces[1][0] << " | " << spaces[1][1] << " | " << spaces[1][2] << " | " << spaces[1][3] << " | " << spaces[1][4] << " | " << spaces[1][5] << " | " << spaces[1][6] << " | " << endl << "-----------------------------" << endl << "| " << spaces[2][0] << " | " << spaces[2][1] << " | " << spaces[2][2] << " | " << spaces[2][3] << " | " << spaces[2][4] << " | " << spaces[2][5] << " | " << spaces[2][6] << " | " << endl << "-----------------------------" << endl << "| " << spaces[3][0] << " | " << spaces[3][1] << " | " << spaces[3][2] << " | " << spaces[3][3] << " | " << spaces[3][4] << " | " << spaces[3][5] << " | " << spaces[3][6] << " | " << endl << "-----------------------------" << endl << "| " << spaces[4][0] << " | " << spaces[4][1] << " | " << spaces[4][2] << " | " << spaces[4][3] << " | " << spaces[4][4] << " | " << spaces[4][5] << " | " << spaces[4][6] << " | " << endl << "-----------------------------" << endl << "| " << spaces[5][0] << " | " << spaces[5][1] << " | " << spaces[5][2] << " | " << spaces[5][3] << " | " << spaces[5][4] << " | " << spaces[5][5] << " | " << spaces[5][6] << " | " << endl << "-----------------------------" << endl; } void checkWin(int row, int col) { int count = 0; for (int j = 3; j >= -3; j--) { if (spaces[row][col + j] == spaces[row][col]) { count++; } } if (count >= 4) { count = 0; for (int k = -3; k <= 0; k++) { for (int j = k; j <= k + 3; j++) { if (spaces[row][col + j] == spaces[row][col] && col + j < 6 && col + j > -1) { count++; } } if (count == 4) { if (spaces[row][col] == 'x') { cout << "Player 1 Wins!"; } else { cout << "Player 2 Wins!"; } on = false; break; } count = 0; } } count = 0; for (int j = 0; j <= 3; j++) { if (spaces[row + j][col] == spaces[row][col] && row + j < 7 && row + j > -1) { count++; } if (count == 4) { if (spaces[row][col] == 'x') { cout << "Player 1 Wins!"; } else { cout << "Player 2 Wins!"; } on = false; break; } } count = 0; for (int j = 3; j >= -3; j--) { if (spaces[row + j][col + j] == spaces[row][col]) { count++; } } if (count >= 4) { count = 0; for (int k = -3; k <= 0; k++) { for (int j = k; j <= k + 3; j++) { if (spaces[row + j][col + j] == spaces[row][col] && row + j < 7 && row + j > -1 && col + j < 6 && col + j > -1) { count++; } } if (count == 4) { if (spaces[row][col] == 'x') { cout << "Player 1 Wins!"; } else { cout << "Player 2 Wins!"; } on = false; break; } count = 0; } } count = 0; for (int j = 3; j >= -3; j--) { if (spaces[row + j][col - j] == spaces[row][col]) { count++; } } if (count >= 4) { count = 0; for (int k = -3; k <= 0; k++) { for (int j = k; j <= k + 3; j++) { if (spaces[row + j][col - j] == spaces[row][col] && row + j < 7 && row + j > -1 && col - j < 6 && col - j > -1) { count++; } } if (count == 4) { if (spaces[row][col] == 'x') { cout << "Player 1 Wins!"; } else { cout << "Player 2 Wins!"; } on = false; break; } count = 0; } } }

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