Compilare: user.cpp: In function ‘int main()’: user.cpp:44:17: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] memset(dp[1-j&1],0,sizeof(dp[1-j&1])); ^ user.cpp:44:36: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] memset(dp[1-j&1],0,sizeof(dp[1-j&1])); ^ user.cpp:52:16: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] dp[1-j&1][x][r]+=dp[j&1][i][p]; ^ user.cpp:53:19: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] if(dp[1-j&1][x][r]>=MOD) ^ user.cpp:54:18: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] dp[1-j&1][x][r]-=MOD; ^ user.cpp:59:20: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] ans+=dp[1-j&1][i][0]; ^ user.cpp:16:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d %d " ,&k,&a,&b); ^